In case you are experiencing computer problems, you might instantly think about rushing your computer to the nearest technician but have had previous experiences of letting them do the job which could take lengthy days only to advise you that computer reformatting is the only way to resolve the problem.

Like most computer users you’ve also come across problems on your computer and you have no idea how to fix them. But, you may be on a work deadline, or just don’t have the patience to unplug all your cables and take it into the shop.

There are many reliable PC repair services which you can find online that offer prompt assistance and solution to the problem. You can get a plus from this by being assured of quality customer service, quick response and convenient solution to the computer error, and affordable service fees that surely won’t hurt your pockets.

online computer repair NYC can attend to your needs by analyzing the system errors that has occurred to your computer. These computer problems typically include virus threats, and malware or spyware invasion. What’s more, Online computer repair NYC can also assist you with software installation problems and registry errors.

online computer repair NYC can help you with slow PC problems, computer freezing, reduced internet connection speed, and other system errors that keep your computer from performing the way it did when you bought it brand new. Technical support is also offered 24 hours a day, and 7 days a week so you can be sure that they can respond to your queries whichever continent you may be located.

online computer repair NYC comes with unlimited helpdesk in case the proposed fixes failed in one way or another.

Users want to attach computers to the Internet and receive emails, instant messages; browse web pages, download music and fun software etc. The problem is that this puts not just millions but billions of people at their doorstep! Imagine that if billions of people could reach a home instantly – how many ill intentioned people would come by to see if the doors and windows were secured? How many con artists would knock on the door? An Internet connected computer is in just that predicament.

When a computer is connected to a network by design it starts listening for communications from the outside world. Things known as ports get created which are special “doors” to the computer. These doors are special because they each have a designated program that will answer the door if it is knocked on. Examples of programs that listen for traffic from the network include:

1. instant messaging programs2. Internet phone software3. software for connecting to the computer from remote locations4. Internet games

Even the operating system itself opens ports to share files or a printer or anything else on the computer. Each of those programs creates a “door” to a computer that it will answer if someone “knocks” on it. If that program is poorly designed then when it answers the “knocking” program could take advantage of it and thus compromise the computer.

In addition to people being able to come across the Internet and knock on one of the “doors” mentioned above – by using a web browser and surfing the Internet users are inviting people to access their computers. Every time a web site is browsed the web browser is downloading files to the computer and processing them. If that web browser is not programmed properly it is a huge security risk. For example on December 12 of 2008 Microsoft reported a big security hole in all versions of its Internet Explorer browser. The hole permitted data stealing software to be installed on the victim’s computer just by browsing an infected web page! Other examples of programs that invite access to your computer:

• Email programs• File sharing and music sharing programs (by far one of the largest security risks)• Instant messaging software

So aside from isolating a computer from the outside world, how can one protect a computer system? Here are some tips:

1. Don’t use Internet Explorer as your main browser. I am not bashing Microsoft or Internet Explorer particularly and something should be made clear: It is not necessarily that other browsers are programmed so much better but that 80% of people surfing the Internet are using Internet Explorer. Thus thieves interested in gaining access to the maximum amount of victims are going to spend most of their efforts exploiting the security holes of the browser that 80% of the people are using.2. Put a firewall between your internal network and the Internet. A firewall’s job is to keep out those billions of people who can be at your doorstep instantaneously. It will only allow those you invite to knock on your computer’s door.3. Use a Firewall on each individual computer. The network firewall mentioned above is a big step toward protecting the internal network. The problem is that it generally won’t protect users from themselves. A user browsing a website is telling the network firewall that it has given an invitation to that website and to permit files from that site to come through. If the user browses an infected website with a browser that has a security hole a virus will get into the network. If it is a certain type of virus it could start replicating itself within the local network. A computer firewall defends against this sort of problem.4. Update your operating system and browsers. Security holes are constantly found in all operating systems and all browsers. Software updates patch these holes.5. Use a good and up-to-date antivirus and spyware program. These programs help prevent damage from viruses that do make it to your system.6. Backup your data. Short of isolating a computer it is impossible to 100% secure a system. If you backup your data then should the worst occur having good backups will prevent disaster.

The above represents the basics and go a long way to protecting computer systems.

Yves A. Martin is the founder of M

]]> http://www.jenniferdejoya.com/2010/04/antivirus-internet-security-basics-how-viruses-get-on-a-computer.html/feed/ 0 http://www.jenniferdejoya.com/2010/04/solve-your-computer-problems-within-a-few-minutes.html http://www.jenniferdejoya.com/2010/04/solve-your-computer-problems-within-a-few-minutes.html#comments Sun, 04 Apr 2010 03:52:54 +0000 admin http://www.jenniferdejoya.com/2010/04/solve-your-computer-problems-within-a-few-minutes.html In the modern internet era, you cannot run a business without computers. Small business owners need to have at least a few computers that are networked together. Further, there must be an active internet connection for the whole office. Even though entrepreneurs are required to have computers for their office, it is not necessary that everyone must be a computer geek. You need to use your computer for business, but you don’t know how to solve computer problems. You can get onsite computer services to troubleshoot your business computers. If you have problems with home computers, you can call the technicians to offer you the best service.

 

Some computer repair companies provide onsite and offsite services. Both of these services may be needed to solve your problems. Onsite computer services provided by computer repair companies can be used if you are not able to send them problematic hardware. Also, software problems encountered in your computers can be solved only using onsite services. Off site services are beneficial for companies as they can solve your problems without sending technicians to you directly. If you have an office in Tulsa, it is better to get computer repair Tulsa because for urgent needs, you can call the technicians easily and they can come to your office within minutes. You can also call the technicians to offer services for residential laptops and computers.

 

While choosing companies providing onsite computer services, you have to ensure that the company has expert technicians in the field. Many certification programs are provided by leading computer companies like Microsoft, Oracle, Sun to certify technicians to work with their products. Only a reputed company must be hired because you don’t want anything bad to happen to your computers. When experienced technicians come to your site for computer repair Tulsa, you can be sure that the problems can be easily solved. Easy availability of technicians is essential to solve your problems quickly and efficiently.

 

Computer repair Tulsa ensures that all emergency problems in your office in Tulsa are solved with required technical expertise. Problems with laptops and desktop computers are also solved in a few minutes once the technicians identify where the problem is. Virus and pop up removal along with anti Spyware and anti Malware protection for your office computers can be ensured only if the experts come to your office. To set up your computers and network according to your own requirements, you need to get onsite computer services. Only if all the necessary hardware and software are installed, you can ensure that your office network functions optimally.

 

For all computer problems, computer repair Tulsa must be approached because you cannot risk losing data on account of computer problems. The technicians who provide computer repair services must be available to you when you call them. Sometimes, you may need backup services to backup data available in your computers. Technicians from the company will reach your site and store the data in back up servers to make the data available for you during crisis time.

Nexus solutions is a leading company providing computer repair Tulsa for business clients and home networking. The company specializes in providing onsite computer services for its business and residential clients.

]]> http://www.jenniferdejoya.com/2010/04/solve-your-computer-problems-within-a-few-minutes.html/feed/ 0 http://www.jenniferdejoya.com/2010/04/gpu-computing-high-performance-computing-at-its-best.html http://www.jenniferdejoya.com/2010/04/gpu-computing-high-performance-computing-at-its-best.html#comments Sat, 03 Apr 2010 04:01:29 +0000 admin http://www.jenniferdejoya.com/2010/04/gpu-computing-high-performance-computing-at-its-best.html A graphics processing unit (GPU) is a RISC processor used in video game systems and computers for calculating the graphical output for monitors. GPUs are used at manipulating and displaying computer graphics. GPUs are a part of mother board or they can come along with video cards. Graphic accelerators are a part of GPU also. High performance GPU computing involves solving advanced computational problems using supercomputers and computer clusters. GPU computing includes all tasks that a graphics processing unit can calculate.

In GPU computing the CPU calculations are replaced by Graphics Processing Units. Migrating large scale algorithms and entire kernel onto the GPU co-processors help in arriving at the answer much faster and thus decreases the processing time. GPUs are never a complete replacement for CPUs but complementary. Parallel operation of CPU and GPU has found to increase the performance. CPU’s offload the tasks which are better performed by GPU leading to high performance computing. GPU excel CPU’s in certain computational tasks.

A GPU’s processing power is mostly used while dealing with 3D scenes and video. The GPU computing for a graphics task such as rendering a 3D scene involves many stages like vertex processing, vertices grouping, fragment processing and mathematical operations. GPU computing is also known as General Purpose Computation on Graphics Processing Unit. Acceleration of video and picture editing, artificial intelligence and physics calculations come under the tasks of GPU computing.

GPU uses Advanced Graphics Port (AGP) to communicate with the mother board of a computer. Programmable shaders capable of manipulating vertices and textures are supported by latest GPUs. Very high precision color spaces, over sampling and interpolation techniques to reduce aliasing are also supported by GPU. GPU can process multiple independent vertices and fragments in parallel. Moreover a variety of computational resources are available on the GPU.

Multi-GPU’s are also available and are generally used in high-end home computers to accelerate computer games. Multi-GPU systems use more than one GPU. An example of multi-GPU system is Nvidia which can make a PC perform 250 times faster than usual. Not only that but by making use of the CUDA architecture which is made up ofhundreds of processors cores data set can be easily crunched via the application. General Purpose computing on graphics processing unit uses a GPU to perform computation in applications traditionally handled by CPUs. Additional programmable stages are included to make this happen. The general Purpose Computing on GPU(GPGPU)has cleared new ways in diverse fields like scientific image processing, oil exploration, linear algebra and 3D reconstruction.

GP GPUs are used in computer clusters, physics engines, FFT, audio signal processing, digital image processing, bioinformatics, scientific computing, DSP, neural networks and many more. GPU computing CUDA was developed by Nvidia. AMD has announced a super computer based on GPU which will be built of more than thousand GPUs. This supercomputer will have a computing power of one petaflop. The processing power of GPUs have further increased due to the advent of OpenGL API and similar functionalities in DirectX. Intel, AMD/ATI, NVIDIA and S3 Graphics are some of the players in the market who produce GPUs. Many companies are now engaged in researches to find out the further benefits of GPU computing.

XENON is a manufacturer of high-performance servers and data storage for the digital content creation and corporate market.

]]> http://www.jenniferdejoya.com/2010/04/gpu-computing-high-performance-computing-at-its-best.html/feed/ 0 http://www.jenniferdejoya.com/2010/04/a-glimpse-into-computer-technology-training.html http://www.jenniferdejoya.com/2010/04/a-glimpse-into-computer-technology-training.html#comments Fri, 02 Apr 2010 03:53:45 +0000 admin http://www.jenniferdejoya.com/2010/04/a-glimpse-into-computer-technology-training.html by: David R. Wetzel

Computer technology schools offer a range of degrees and programs. Schools that teach computer technology include technical schools, colleges and universities. Degrees in computer technology are offered at three levels for beginning students; bachelor’s degree, associate’s degree and specialized computer certifications.

Technical schools offer computer technology degree programs year round, while colleges and universities offer summer courses for earning a degree quicker or part-time programs for busy students.

Typical programs offered by computer technology schools such as ITT Technical Institute include information security systems, data communication systems management, computer science, software engineering, web development, networking and software applications. Degrees from other schools of computer technology include computer gaming design, interactive media develop, web development, and systems administrator.

Computer technology schools offer courses focused on the architectures of operating systems, network systems, user interface construction, C + + language, data bases types and formats, programming standards, etc. These courses are designed for those who wish to earn degrees in computer software and computer information systems. Courses focused on web design and development includes Internet hierarchy, authoring tools, scripting designs and more.

Bachelor’s degree computer technology upper-division courses focus on data storage advanced warehousing techniques, management of technology projects, multiple computer programming languages, graphical interface design, software development methods and more. The advantage of a bachelor’s degree in computer technology is a wider selection of employment opportunities.

Computer degrees lead to earning certifications in computer technology. Many courses in computer programs prepare students to pass tests for computer technology certifications. According to About.com’s article Computer Certification’s Top 10 Certifications for 2009, the top two certifications are Cisco Certified Internetwork Expert and Certified Information Systems Auditor. Their pass rates are low; however, average annual salaries are high.

Someone considering a computer technology education needs to first determine the type of degree they want to pursue. This decision helps narrow the search for a computer technology school. Computer technology bachelor’s degree can be completed in four years, associate’s degree programs can be completed in two years and certification programs range from few months to a year.

BeginCollegeNow is your career and education headquarters. We are experts in education, assisting students with that all important decision of selecting a major and using their degree to begin a new career. BeginCollegeNow also provides valuable research on careers in business, education, nursing, health care, technology and many more. Check us out to get a glimpse into the many career and education options available to you.

]]> http://www.jenniferdejoya.com/2010/04/a-glimpse-into-computer-technology-training.html/feed/ 1 http://www.jenniferdejoya.com/2010/04/about-computers-and-computer-companies.html http://www.jenniferdejoya.com/2010/04/about-computers-and-computer-companies.html#comments Thu, 01 Apr 2010 03:54:21 +0000 admin http://www.jenniferdejoya.com/2010/04/about-computers-and-computer-companies.html The advent of the computers radically changed our lifestyle. Communication, researching and other works have never been any easier.
Computers are machines that work on data according to the list of instructions. Early electronic computers consume much power. Modern computers, on the other hand, are based on tiny integrated circuits. Nowadays, simple computers can be made to fit in a wristwatch and powered by watch batteries.
Generally, a computer has four main sections such as the ALU or the arithmetic and logic unit, the memory, the control unit and the IO or the input and output devices. The basic input and output, control unit, register and control units are known as the CPU or central processing unit. Early central processing units were composed of numerous circuits but now it is typically assembled on a single integrated circuit known as a microprocessor.
The Arithmetic or Logic Unit (ALU) is capable of executing two modules of operation such as logic and arithmetic. Some computers are capable of executing easier operations that can be programmed to break the complex operations, making them into easy executable steps. Hence, a Superscalar computer has multiple arithmetic or logic units.
There are numerous computer companies around the world. One of this is the Yemen Computer Company. It is the main and pioneer company of Yemen. It is the most experienced and the largest computer company in this country.
Furthermore, this Yemen based company is a computer software and hardware vendor or distributor. It also represents Intel servers, IBM products, Sun Microsystems products and POS products. It also caters to ATM products, Satellite Communication products as well as their related support supplies and systems.
The company is also associated with numerous software houses in order to provide the needs of commercial, trading, public utilities, airlines and telecommunication along with banking sectors. Yemen Computer Company has several headquarters located in Yemen. This would be in Mukalla, Hodeidah, Taiz, Aden and Sana.
Tactical Computer Company is the leading cutting edge software development company. This Ohio based company offers services such as Custom Software Development, Custom Web Solution, Emerging Technologies, Lost Password Recovery and Online Commerce as well as Internet Site Development, Database Design and Integration, Security and Firewall Specialists.
Ormond Computer Company is an Information Technology department for companies that do not have an in-house and full time Information Department. It can also be for those with only a small Information Technology that needs outside assistance. The company technicians can build and design your workstation or server. All Custom Built Systems of the company are built with premier quality components.
Helix Computer Company is based in Indiana. The goal of the company is to provide quality services and products to their consumer. The company has services such as Custom Built Computers, Video and Audio Production Services, Photography and Design Services. This is along with Website Design and Marketing Services, Computer Services and Repair.
Helix Computer company can build turn-key computer systems for numerous applications. The Company production studio was constructed with a self-sufficient artist in mind. Helix production studios are capable of making videos, audios, graphics, animation and so much more.
Computers may be quite expensive but you can scout for refurbished ones such as Dell Computers that can collect their old model computers while still be installed with the latest technology. This model is great and affordable in budget terms.
Sometimes a basic computer may be enough for your needs. The bare bones model is also great if you only check e-mails, word processes and surf the Internet. Dell retails basic models for less than 500 US dollars. This basic system is a good deal for common users.

For more information on Computer Stores in Springdale, UT and Computer Stores in Washingtonplease visit our website.

]]> http://www.jenniferdejoya.com/2010/04/about-computers-and-computer-companies.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/is-your-computer-extremely-slow-here-are-some-tips-to-improve-its-performance.html http://www.jenniferdejoya.com/2010/03/is-your-computer-extremely-slow-here-are-some-tips-to-improve-its-performance.html#comments Wed, 31 Mar 2010 03:53:42 +0000 admin http://www.jenniferdejoya.com/2010/03/is-your-computer-extremely-slow-here-are-some-tips-to-improve-its-performance.html So is your computer extremely slow? Are you wasting more time waiting then you are actually working? This can be completely frustrating and at one time or another all computer users will experience their computer being extremely slow. Fortunately there are some things that you can do to fix a slow computer.

When you first purchase your computer it runs fantastic, you can open and close programs quickly, you can browse the Internet with speed, going from website to website, opening and closing pages without a problem, but after awhile you begin to notice a change. Your computer isn’t running with the same type of performance it had when you first purchased it and you spend more time waiting because your computer is extremely slow. Well if your now slow computer has you wanting to throw it out the window lets see what we can do to remedy the problem.

One of the many causes of a computer running extremely slow is that you have very low available disk space on your hard drive. Your hard drive needs to have an adequate amount of free space to allow for temporary files and it must also be able to accommodate your swap file. If your swap file cannot accept temporary files it will result in a slow computer. A swap file is just a file that is stored on your hard drive and it is used to store information that is not being used by your computers RAM (random access memory) at any particular moment. If your computer is extremely slow, your hard drive could be lacking the room for your swap file to grow, keeping it from storing more temporary files which in turns frees up more of your memory.

We can help your slow computer by regaining some of the space on your hard drive, in a couple of ways. The first step you should take is to run the disk clean up option that is right inside your system tools. To get to your system tools you would click on your “Start” button, then open “All Programs,” then click on “Accessories” and choose “System Tools” from the list and that opens up another list that you will choose “Disk Clean Up” from. Once you have Disk Clean Up opened you just double click on it and it will do all the rest. Now try using your slow computer for a day or two and see if it has made any improvements on your computers performance.

Now is your computer extremely slow even after you completed the Disk Clean Up and put it to use for a day or two? If so then we will have to use another trick to try and correct the problem. Your computer will contain folders that have files in them that are used for uninstalling Microsoft Windows updates. When ever you update your computer with Microsoft updates you simultaneously download the uninstall files which will allow you to uninstall any updates that you decide you don’t want for one reason or another. Well if your computer is extremely slow you may want to consider deleting these uninstall folders because they can take up a significant amount of hard drive space resulting in a slow computer.

You are going to want to locate and delete these uninstall files and to do that you must first open “My Computer” and inside My Computer your going to open your “C: Drive.” Now inside your C-drive you will open “Windows” or it may be called the “Winnt Folder” and when this folder is open you will see folders labeled $NTUninstall, now any of these folders that are older then a month you can delete. That should have cleaned up a lot of unnecessary files and folders, freeing up quite a bit of hard drive space. This will usually correct any problems causing your computer to be extremely slow.

Now, if you find yourself constantly complaining because your computer is extremely slow you now have a couple of tricks up your sleeve that you can use anytime that should help correct the problem.

Is your computer extremely slow? For more information on how to solve problems with with your computer visit my Squidoo Lens:
Is Your Computer Extremely Slow?
You can also sign-up for my FREE 7 Part Mini-course on computer maintenance at Registry Repair Reviews I hope this helps solve your computer problems. Thank you for reading!

]]> http://www.jenniferdejoya.com/2010/03/is-your-computer-extremely-slow-here-are-some-tips-to-improve-its-performance.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/disadvantages-of-computers-in-the-classroom.html http://www.jenniferdejoya.com/2010/03/disadvantages-of-computers-in-the-classroom.html#comments Mon, 29 Mar 2010 03:59:50 +0000 admin http://www.jenniferdejoya.com/2010/03/disadvantages-of-computers-in-the-classroom.html To start the most significant fact that should be stated is that the computer is a tool, and as with any educational tool, from books to crayons, it can be used to enhance the curriculum and promote learning, but it can also be misused and abused. In this essay, I will discuss the disadvantages of having computers in the classrooms due to the misuse and the abuse of this tool.

I found it hard to find research that had been done on this topic because not only is the research on the effectiveness of computers in the classroom scarce but the research that is there is often done by software companies and therefore may be biased. (Emmans 2001). Even though there is no clear-cut answer to the question of a computer being a friend or foe in the classroom, having an unsolvable question of good or bad brings many issues to light. For example, the fact that much of the software designed for children is appealing to them. If nothing else, it at least holds the children’s attention. Though this may seem like a positive characteristic, consider this, just because a television show holds your attention, does it necessarily educate you? The answer to this is simple, maybe some do, but certainly not all do, mostly they are just simply entertaining. This causes me to raise an eyebrow at some, not all, software. As a teacher, one must not use time-fillers, cause a child can watch television or play on a computer at home, but as a teacher, we must educate, and if there is no educational value in the software, what good is it for a teacher? On the defense for teachers, another reason for computers being a shortcoming is that sometimes the software is not obvious that it is non-educational. This can be a common mistake of any educator, being fooled that a product could be educational when it is merely entertainment software dressed up in an educational costume aimed at these gullible teachers.

According to Cindy C. Emmans (2001), a professor of Educational Technology at Central Washington University, on software in the classroom…

” Often feedback is the key to learning, and computers are appealing because this feedback can be immediate, which is of course a very effective learning tool. Unfortunately, this feedback is not often as effective as it might be, perhaps because it is not easy to return to the original question to try again, or the student must begin at the beginning to review the original content rather then backing up a step or two. In some cases, the feedback for the wrong answers is more appealing than that for the right answer, causing students to try and get the wrong answer simply for the entertainment value”.

Gerald W. Bracey sums it up adequately in a journal article called Principal by basically saying that the bells and whistles are all there, but the education is not, because it was not produced by someone who understands how children learn. (1996, p.6).

More arguments in the research area continued in September of 2000, the Alliance for Childhood published a statement against the use of computers in schools. More than 85 experts in various fields including psychiatry, education, and philosophy signed the statement in which calls for a suspension on the promoting introduction of computers into the nation’s elementary schools until there is a more careful assessment of their effect (Hafner, 2000). Another influence in opposition to computers in classrooms is that of Jane Healy, an educational psychologist and the author of “Failure to Connect,” a book criticizing educational applications of computers. Thomas Crampton interviewed Mrs. Healy and she declared that computers “can hurt children’s personal skills, work habits concentration, motivation, (and) the development of social skills” (IHT, October 2000, p. 19).

Another reason that computers in the classroom would prove to be a disadvantage is the availability of computers in the classroom to each individual student. It is rare to find a school that, in each classroom, has a computer supplied for each student. This then brings up the problem of scheduling and rotating the students to the computers available. (Tiene 2001) This begins a whole new ball game in which you are now consuming a lot of time in which could be used for more productive measures rather then scheduling computer time for each student. If this is the case, and only a specific amount of students can be on the computer at one time, then you are dividing your classroom, and not integrating it, as it should be. This causes many difficulties in teaching a whole group instruction, which leads to problems in skill development, since the attention of some students is lacking. (Tiene 2001).
On the Colorado state education web site (2003), I was able to find questions that were asked to teachers regarding computers in their classrooms. The teachers were asked, “What do you find unattractive about teaching in a computer based classroom?” The one teacher commented that, ” Students have a tendency to come in a print out their papers at the beginning of class instead of coming into class with a hard copy…” Another teacher said, ” Technological difficulty, your whole lesson could be shot for the day if the computer would go down”. When the teachers were asked about the difficulties they faced themselves and with the students due to computers in the classroom, they answered, ” It is hard to get the students attention when they are on the computers.” Another teacher commented, ” There are times that I send them to work and instead they are interacting with each other.” Another teacher stated her fear of the computer classroom by saying that, ” Students are at their own screens, they’re in their own little world, and they are not talking to their classmates, sometimes I think that they don’t even know half the names of all the people in their class.” (Barnes 2003) I feel that these teachers comments are very important when looking at the issue of computers in the classrooms, because these are the people that actually interact with the children in the classroom, they are not just some random research study by a software company, these people are the real thing, and they see how computers are effecting their classrooms.

Another issue of computers in the classrooms regards the child’s health. If a child were to be functioning on a computer for a long interlude of time or with incorrect positioning they will inadvertently obstruct their own health, some problems caused from this include muscular-skeletal injuries and vision problems. (MacArthur & Shneiderman, 1986).

Another issue concerning computer use in classrooms is that a lot of teachers have not been trained to use a computer, and many do not know how. An enormous amount of time would have to be consumed for the teachers to learn both the hardware and the software of the computer. They also would need time to collaborate with other teachers. Time is something that many teachers spend planning lessons and the weekly events of their classroom. The other problem that was just mentioned was the training of the teachers. Some educators do not have local training options available to them. Some do not have the time or money to spend on it. Another issue is that even if a teacher does go through training, there are always unsuspected things that can go wrong with a computer. If a teacher were to base their whole lesson on a computer, and it were to crash, and the teacher just being minimally skilled in using computers, would not be able to fix the system so that they could continue their lesson. (Tiene 2001).Therefore an on-site technology expert would be needed on site at all times in case any of these incidences would happen, and quite frankly I do not think that there are too many school districts looking for another expense.
Another reason for computers being a disadvantage in the classroom is that if the computer is Internet accessible, if this is the case, then the children can be exposed to Internet content that is not appropriate for their age level. They can also be exposed to child predators, which is a huge concern in today’s world.
Though this may seem far-fetched it truly is not in an article published on the gurdian angel websitein 2000 states,
“The facts are plain. Children are being targeted, solicited, and made victims by pedophiles. What do the ratios or statistics matter? Isn’t even one too many? These predators range from the simple minded closet pedophile who has surfaced because they believe they are safely anonymous behind their account alias, to the highly organized and skilled child pornography rings that operate predominantly off of US soil, behind quick discard web sites, and anonymous re-mailers, pushing their hideous wares for big profits. Have you ever heard of a child being molested or kidnapped in your hometown? Don’t you teach your kids to watch for certain things and, not to talk to, or go anywhere with, strangers for just that reason? This is our point. Just as there are real world lessons that you teach your children, there is a necessity to teach them cyber-world lessons. ” (Hook, 2000).
To put this quite simply, are you sure that your child is being watched very closely when accessing the Internet at school? It sure would be hard for one teacher to keep a close eye on each individual student in the classroom when they are all accessing the Internet at the same time. Therefore are you, as a parent or a teacher, really quite sure that a computer is necessary to learn in school? I mean, didn’t you, the parent or teacher, learn in school without the computer? I agree that learning the latest technology is a necessity, but I do not agree with using computers for classes like mathematics or reading.
To sum it all up, Computers in the classroom lacks research of it being an advantage in the classroom. Computers in the classroom may not provide the students with the proper education that they need if the software being used is not adequate. Computers may not be, depending on the school, made available to each student. The attention of the students is harder to get when they are on the computer. An inexperienced teacher in the technology area may cause many problems in the classroom, and consume valuable time that could be used to educate. Most schools do not provide an on site technician in case a difficulty may arise. The children’s health may be affected by long-term use of the computers, and probably the most frightening one is that these children can be exposed to child predators and unfiltered inappropriate content through the web while they are in school and in their classrooms presumed to be receiving their education.

Katie Criss is a graduate with a dual degree in Early Childhood Elementary Education, who enjoys writing and wants it to be seen! Also enjoys doing research and saving money!See this Authors Research by clicking here

]]> http://www.jenniferdejoya.com/2010/03/disadvantages-of-computers-in-the-classroom.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/hurricane-proof-computer.html http://www.jenniferdejoya.com/2010/03/hurricane-proof-computer.html#comments Sun, 28 Mar 2010 03:52:36 +0000 admin http://www.jenniferdejoya.com/2010/03/hurricane-proof-computer.html Hurricanes cause billions of dollars in damage each year, including damage to computers. Unfortunately, computers can be much harder to replace if lost than other electronics because of the data contained on their hard drives and time spent tweaking and overclocking them. Being a Katrina evacuee and survivor myself, I know how important a computer can be after a natural disaster. With hurricane season looming in the days ahead, I decided to write a guide to help people protect their computers and data during a natural disaster.

Part I: Backing Up Data And Things to Have

Hurricane season or not, you should always be backing up your data. Whether you plan on riding out the storm (a bad idea) or evacuating to another location, you should have a backup of your computer data either on an external hard drive or optical media such as CD-Rs or a DVD. Be sure to keep your data in a very safe place, such as a water proof safe. Never leave your backup by your computer.

Next, you should have the following things to make life after the storm easier:

Phone numbers for insurance, computer or computer parts companies, and phone numbers for all local ISPs (including dial-up and satellite). Having your insurance phone number and phone numbers for your computer company will help get your computer replaced faster if it is damaged. I can’t stress enough how important it is for you to have phone numbers and even access disks for all of your local ISPs! After Katrina, the Internet was the only way many people could contact the outside world. As fate would have it, my broadband was down for 3 weeks and none of the other broadband ISPs would except new orders due to the storm, leaving me with my old friend Dial Up, whom I thought I had buried 8 years ago. Your best bet is to use a satellite ISP as they have no equipment that can be destroyed by a hurricane and cause an outage.

Back ups of all your file, have all application and game discs, CD keys, drivers, and operating system discs on hand.

Photos of your computer as well as proof of what parts are inside.

In the event your quad SLI rig is destroyed, you don’t want your insurance company to replace it with something of a significantly lesser value, do you? It’s very easy for people to claim “I had this, this, and this and it all cost me $3000 last month.” after their 3 year old Athlon XP rig is destroyed. As a result, your insurance company may be hesitant to replace your expensive computer parts unless you can prove you own them. Also know to what extent your insurance (including flood insurance) will replace damaged property. While some policies will cover the replacement cost of damaged property, some may only cover part of the damage cost. Also know what your deductible is.

Social networking sites such as myspace were great after Katrina. Friends could find out where other friends had evacuated to simply by reading each others’ myspaces.

A generator can power many things, including home computers! Check with your local generator supplier about any local laws about generators, how to safely and properly set one up, and how well they will work with computers. Because generators provide unstable power, a battery backup UPS and a surge protector are a must. Do not count on gas to power your generator being available in the aftermath of the storm. It’s best to have a good supply of gas as well as a few empty gas containers on hand.

Part II: Evacuating with Your PC

Like any family members or pets you may have, your PC isn’t something to leave behind if you can avoid it. While your first priority should be getting out alive, you should consider bringing your PC with you if you can room in your car. You can’t count on your destination to have good computers, high speed Internet, or any entertaining activities for that matter. Being in another place during a hurricane is stressful. Between watching your home town being walloped on CNN and The Weather Channel, the people around you as well as yourself will be tense and worried. Having a nice computer to browse the web with and play Battlefield 2 is a sure entertainer. In fact, the Internet was the only place where I could get information about my very neighborhood after the storm! Local newspaper message boards were packed with evacuees from all over my area and had plenty of information about damage to share.

Even if you can’t bring your PC, at the very least bring your hard drive with you! If your home is looted in the aftermath of the storm, the last thing you want is your personal data in someone else’s hands. Be sure your hard drive is in an anti-static bag to avoid needless damage to it.

If taking a long road trip, you should probably place some sort of padding or foaming (even a blanket will work) around your computer or hard drive to protect it from the vibrations of the car. Don’t bring your monitor unless you have an LCD and there’s room for it.

Part III: Leaving Your PC at Home

If you don’t have room for your PC in your car, don’t plan on staying with it during the storm. There are several safeguards you can take to prevent unnecessary damage to your computer:

Cover any open parts of your computer case (such as fans and vents) with tape. Don’t use duct tape unless you want to risk taking paint off your case or a sticky mess.

Cover your computer with as many trash bags as you need. At least 2 trash bags per computer are recommended.

Consider how high your home is above sea level, the risk of flooding, and other factors. If you know your home could flood, you should put your computer on the second floor. But if you know your roof is weak and could easily blow off, don’t put it on the second floor! Find an enclosed space with no windows (such as a closet) as close to the center of your home as possible. If your computer case has a side window, make sure it’s facing towards the ground or against a wall. If you can, place other objects around your computer to offer it additonal protection from blowing rain and flying debris.

Part IV: When the Worst Happens

In the event your PC becomes damaged during the storm, don’t fret. If the damage is from a fallen tree or a piece of flying debri, there is nothing you can do. If your computer becomes flooded, however, there are steps you can take to recover it. Below is a basic guide on how to recover a flooded computer.

Do not turn on the computer! Make sure it is unplugged! While you may be anxious to see if your computer can run, don’t do it if you know it’s been exposed to water. You’ll just end up causing more damage if you do. Remember to keep your computer unplugged.

Remove components that work. If you can see a water line in your computer, take out all the components above it and put them in a safe place.

Let your computer dry. Let your computer dry for a week or so. One drop of water in a running computer could mean disaster.

Remove the CMOS battery and other parts.

Use a solution of 90% alcohol or more to wash the various components of your computer, including connectors. If necessary, use a paint brush to remove stubbon crud.

Let your computer dry completely.

If the above doesn’t work or you have data you can’t risk losing on your hard drive, consider professional computer recovery. Do not plan on salvaging the power supply, CMOS battery, the hard drive, optical drives, or any fans if they have been flooded. Also remember to take pictures of any damage to your computer before you attempt to fix it for insurance purposes.

Hopefully this guide will help people save their computers from hurricane related damage. A computer is a very useful tool that should be part of any good disaster supply kit. Trust me when I say it’s an important thing to have around. However, remember a computer is only a material possession. Like all material objects, they can be replaced. Human and animal life, however, cannot. Use good
judgement when deciding whether or not to take your computer with you and while repairing it if it damaged.

Disclaimer: In no way is the author responsible for any actions you may take to save your computer from a hurricane or fix it after flooding. Any actions you choose regarding hurricanes and computers are taken at your own risk. For the sake of all, please use common sense during any natural disaster.

Joe Uantu is the owner of PC Fastlane, a great place to find free computer help, interesting tech articles, tech news, a list of 200 free PC games, reviews, and more.

http://www.pcfastlane.com

]]> http://www.jenniferdejoya.com/2010/03/hurricane-proof-computer.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/guide-to-buying-a-desktop-computer.html http://www.jenniferdejoya.com/2010/03/guide-to-buying-a-desktop-computer.html#comments Sat, 27 Mar 2010 03:53:01 +0000 admin http://www.jenniferdejoya.com/2010/03/guide-to-buying-a-desktop-computer.html With the rapid pace of technological developments, nothing has become as ubiquitous as the computer. Everyone’s got one. And they are used for all manner of endeavour, by people of all walks of life. So, do you simply buy the computer that someone’s selling? Or do you do some homework and figure out what detailed specifications are going to make some difference to you?

At Myshopping.com.au you can compare the prices of a wide range of different computers from different vendors and of different specifications. This guide will help you find what you’re looking for.

Mac or Windows (PC)

At the outset, you need to decide what you are going to use the computer for. This will help you make the fundamental decision of whether you should go Mac or PC. Although, with the advent of the dual core processor (an Intel chip now used by Mac) the differences are narrowed a little, there are still some choices that can help you favour one system over another. Historically, Mac computers have a reputation for greater stability that comes from a more robust operating system than Windows based computers. Largely for this reason, Macs have been the computer of choice for the graphic design industry, the music production industry and the video production industry. This has prompted the software manufacturers to make professional software packages for these disciplines that favour the Mac operating system. Although they have packages supporting the Windows operating system, they are often less capable.

Consequently, if you are engaged in these industries and need your computer for this type of work, you should consider Mac. Mac computers appear to attract fewer viruses and software malfunctions than do Windows based PCs. On the down side, there has always appeared to have been limited software support for Mac systems.

Another decision that may guide your choice is the aesthetics of the computer. If you have limited available space, there is nothing quite like the iMacs or the mini Macs for space saving. iMac’s all-in-one desktop units are compact and complete with all the connectivity you need. However, the look of other brands may be more to your taste, with many models available in compact packages and modern colour schemes to suit practically all dÊcor. Now that you’ve made that basic decision, you can start comparing the apples with apples.

The Components of Your Computer

The two factors that determine the price of your computer are size (yes it does matter) and speed. Either or both of these two dimensions are a factor of practically every component that makes up the machine. Naturally the highest price tags go with the combination of biggest and fastest.

CPU

The heart of the computer is the CPU (central processing unit). You need to decide which CPU you want driving your computer. These come from different manufacturers, and the current development of the technology is called Dual Core, which means that there are two processors on the one chip. Dual Core technology delivers more performance with less energy requirements. Intel and AMD are the two leading CPU manufacturers, and they offer different products under different names.

Current processing speeds range from about 1.4 GHz (gigahertz) through to 3.46 GHz. But it is not simply just a matter of speed. There are other considerations. Mac Operating Systems have a different architecture to Windows and will perform many functions faster with a slower speed CPU. A dual core chip at 1.4 GHz will deliver a better performance that a Pentium 4 chip at 1.8 GHz. A 1.4 GH dual core chip running a Mac with OSX Tiger, will perform better than a 2.0 GHz Pentium 4 processor running Windows. You need to decide what you want your computer to do, what your major software requirements are before you decide on the CPU processor.

However, for everyday use, a processor faster than 1.8 GHz will deliver excellent performance. As a rough rule of thumb, choose a Celeron for low cost computing, a Pentium 4 for mid-range budgets, or an AMD Athlon for bigger budgets. You can compare computers based on Pentium, Celeron, Athlon or Dual Core CPUs by searching those specifications on Myshopping.com.au and finding different vendors and brands using different processors.

RAM

This is where bigger definitely means better performance. RAM is the system memory that enables the computer to use its programs and swap data between the hard drive and the program functions. It’s important to match the speed of the RAM of your computer with the speed of the CPU. The more RAM you have available for your programs to work, the faster will your computer run. Most computers today come with at least 256 M (megabytes) of RAM. But memory is a relatively cheap component, and it costs little extra to upgrade to 512 M or greater.

HARD DRIVE

The hard drive of the computer stores your program files and your data. As computers have advanced, so has the need for more capacity to operate programs and store data. People working in media fields tend to work with very large files and require large storage space. Most computers in today’s market come with a minimum of 40G of hard drive space. However, this can be upgraded (usually in 20G chunks) to as much as 200G or more. The effectiveness of your hard drive also can depend on its physical speed (5400-7200 RPM) and the speed at which it can transfer data between the computer’s RAM and the hard drive. Faster means better performance.

REMOVABLE MEDIA

You will want to have a CD-R or (CD-RW) drive installed in your computer, and or possibly a DVD or DVD-R. For reading a CD ROM, all that is required is a CD drive and for watching DVD movies, a DVD ROM drive. However with a CD-R drive, you can record your own data and music CDs, and with a DVD-R drive, you can burn files in a DVD format, allowing you to store movies and data in far greater quantities. The CD-RW (DVD-RW) drives allow you to use re-recordable media. Your decision will depend on what you want to use your media drives for and what you want to store.

Other removable media will possibly include flash card storage, which is usually plugged in via the USB ports on the computer.

MONITORS

The monitor for your computer is integral to its function and aesthetics. If you are working in graphics you may want to stay with a CRT monitor. However most bundle offers these days are supplied with LCD monitors, which have the advantages of smaller space requirements, use lower energy and offer wider screen images. However they generally are more expensive (although prices are dropping everyday), can frequently be not as bright, have limited viewing angles and sometimes require a digital interface connector.

For graphics intensive work, LCD screens do not have the same capacity to render colours in gradients as CRT monitors. Once again, size matters. Bigger screens cost more than smaller ones.

VIDEO AND SOUND

For a detailed explanation of video cards, please see the article on Myshopping.com.au dedicated to Video Cards.

The interface between the CPU and the Monitor is provided by the video card. One of the basic decisions you need to make is whether you require a 3D or 2D card. Video cards come in two different types: those that use an AGP (accelerated graphics port) on the computer motherboard and those that use the PCI bus. Data transfer rate is critical to video performance. Faster video cards use an AGP, and this proves a faster data transfer than PCI cards. Most video cards also have their own video memory installed on the card, a feature that increases a computer’s memory performance. Today, these memories are often 128M or 256M, and can be more in the higher-end cards dedicated to sophisticated video work or gaming. Video cards performance is also affected by what is known as clock speed or clock rate, cards with a faster speed offer faster performance.

Cheaper computer
s, and laptops and notebooks, have an integrated graphics chip included in the motherboard instead of a discrete video card. This type of configuration is not as powerful or as fully functional as having a separate video card, which can allow more comprehensive gaming, the use of multiple monitors and faster and better rendering of images.

For a computer to reproduce the sounds recorded in games, movies and music products it requires a sound card. Quality of sound can be affected by the sound card your computer has installed. It’s important that you know how you want to use the sound reproduction processes of your computer. If you are a musician and want to record audio, then you will want to be sure that you have excellent connectivity, good midi access and at least 16-bit (CD quality) audio reproduction. Sound cards give you the possibilities of full cinema surround sound, and the many subtle effects employed by high-end games.

Nearly every computer comes with a set of stereo speakers. However it pays to have a good listen to what you’re buying. Make sure you listen to program that you are familiar with (take your own CD along) and compare the sound in a quiet environment. Many speaker systems for computers have poor frequency response and are underpowered. For desktop use that does not involve a quality listening environment this may be satisfactory. But if you want to listen to music and watch movies for the full effect, then you need to consider buying a good quality set of speakers. Use the search facility of Myshopping.com.au to compare specifications and prices of different speaker systems.

KEYBOARD AND MOUSE

The choice of keyboard and mouse are personal choices. Sometimes it depends on what you do on your computer, whether you have formal typing skills or whether you’re a two-finger hack. Serious writers may prefer an ergonomic keyboard. Keyboards frequently have different clicks and responses to others. You may prefer an infrared cordless keyboard and mouse. You may prefer an optical mouse on which you don’t have to clean the rollers. Optical mice have no rollerball, and can be used on most flat surfaces, but they are more expensive.

CONNECTIVITY

Today, connectivity is everything. Your computer can have wireless connections to all of your peripherals: printer, scanner, and other computers. Having an onboard modem will only be really important if you are using a dial up internet connection. Broadband modems tend to be peripherals and you can connect via USB, wireless or firewire. It does pay to consider how you will connect to the internet and other peripherals. It’s not always convenient to get behind your computer to plug something in or unplug it. Some sound cards have a front face panel with all the connections you need. The USB ports on Macs are conveniently located. Many PC manufacturers haven’t caught on to the fact that it’s important for some people to easily access the connections to their computers.

To compare the different bundle offers from different brands, and to compare the different components by their specifications, search the Myshopping.com.au database for exactly the specifications you are seeking. You can compare prices and vendors, and order what you need online with a few clicks.

Andrew Gates is a writer for comparison online shopping site MyShopping.com.au. MyShopping.com.au helps you compare the different computers from different brands in terms of specifications and accessories. You can also compare prices from hundreds of different brands and vendors.

]]> http://www.jenniferdejoya.com/2010/03/guide-to-buying-a-desktop-computer.html/feed/ 2 http://www.jenniferdejoya.com/2010/03/check-out-the-best-computers-for-sale.html http://www.jenniferdejoya.com/2010/03/check-out-the-best-computers-for-sale.html#comments Fri, 26 Mar 2010 03:56:06 +0000 admin http://www.jenniferdejoya.com/2010/03/check-out-the-best-computers-for-sale.html Buying a new computer can sometimes be quite time consuming, especially if you are trekking round computer stores looking for the best computers for sale. To make sure that you are getting the best deal when you are looking at computer for sale you need to compare prices. One of the best ways of doing this is to check out the different computers for sale online, as many of the biggest computer brands can be found at great prices.Before you begin your search on the best computers for sale you will need to decide what you want your computer for. If you plan on using it for work or for school, you will want to get a computer that has the latest word processing applications and spreadsheet programs. The people who are into downloading music and films, you will be looking at the computers for sale that have a large hard drive storage, that way you will be able to store more music and films. Fans of online gaming will be looking for a computer that has a high end graphics card, a powerful CPU and plenty of memory, to ensure that they will get the best computer gaming experience. Today, the majority of computers are Internet ready, which means that as long as you have an Internet connection at home you will be able to plug straight in and surf the net.To begin your search for the best computers for sale online you will want to check out online computer stores. That way you will get a good idea as to the sort of price that you will expect to pay for your new computer. As many of the computers for sale online are usually subject to quite large discounts, you will probably be able to buy an excellent quality computer for a lot less money than you would expect to pay in store. Due to this, people who look for computers the sale online generally get a really good deal on a new computer. You might even want to buy some extra software for your computer, and this too can be found at an online computer store, and usually at much cheaper price than you would expect to find in the majority of computer stores.As looking for computers for sale online is so popular right now the delivery times your new computer should be reasonably fast, many of the stores will even offer delivery to your home address in just a few days – faster even than some of the computer stores in your hometown can offer you. So if you are looking for the best computers to sale, which are cheaper and can even come with some extras you should look online. You will probably be surprised at the sheer number of computers for sale that are advertised in the different online computer stores. Before you make any choice, do check out the massive variety and make sure that you buy a computer that meets your needs and also meets your price plan.

PCOnline based in Melbourne Australia, we are a leading online computer

store offering the latest in computer parts and computer hardware. Buy all the best brands in computers for sale – PC Desktops, LCD Monitors, Computer Mouse, Hard Drives, Laptop

Computers.

]]> http://www.jenniferdejoya.com/2010/03/check-out-the-best-computers-for-sale.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/how-can-an-online-computer-store-help-you.html http://www.jenniferdejoya.com/2010/03/how-can-an-online-computer-store-help-you.html#comments Wed, 24 Mar 2010 03:53:09 +0000 admin http://www.jenniferdejoya.com/2010/03/how-can-an-online-computer-store-help-you.html Buying a computer can sometimes be a tricky task, especially if you are not all that sure about computers. Some people choose to go to a computer store when they want to buy a new computer, but this can have its downsides as the moment you step into a computer store sales people will be trying to get you to make a purchase. This kind of behaviour can often upset people who just want to browse around a computer store to see what type of computer they would like to buy.If you are put off by this happening to you when you visit a computer store, you should think about getting one of the online computer stores instead. Don’t be put off by the thought of not being able to see computers in front of you, using an online computer store can help you make your choice in many different ways, such as:• An online computer store will have a massive choice of different computers available online and many of them will be at a massively reduced price – something that isn’t normally often an option when you go into a store to choose your new computer package from a regular computer store.• An online computer store also has a great deal of information relating to all of the different computers on sale, if you see a computer you are interested in you just simply click into the product description to find out more about your computer. Regular stores tend not to have much in-depth information about their computers listed close instead they will just be a brief specification rundown.• With an online computer store you can also get more information by e-mailing a member of the sales team who will get back to you as soon as possible – without being pushy. Many people find this approach much friendlier and customer focused as they are not railroaded into making a decision on the purchase of a new computer.• Buying from an online computer store can sometimes help you to get extra software, hardware peripherals for your computer for the same price that you would expect to pay just for a basic computer package in a regular style. Doing this means that you get a whole lot more your money which no one would turn down.• Delivery times from an online computer store are just as fast as buying from a regular store, if not faster. These stores have massive stocks of computers all waiting to be delivered to your home, if you want a computer fast, buy one from an online computer store and you will not be disappointed.Anyone who is looking to buy a new computer really should think about buying from an online computer store. You get the best help and advice without feeling pushed into making a purchase and you could save a small fortune on the cost of your new computer and your new computer accessories.

PCOnline based in Melbourne Australia, we are a leading online computer

store offering the latest in computer parts and computer hardware. Buy all the best brands in computers for sale – PC Desktops, LCD Monitors, Computer Mouse, Hard Drives, Laptop

Computers.

]]> http://www.jenniferdejoya.com/2010/03/how-can-an-online-computer-store-help-you.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/buying-computer-workstation-furniture-amid-this-recession.html http://www.jenniferdejoya.com/2010/03/buying-computer-workstation-furniture-amid-this-recession.html#comments Mon, 22 Mar 2010 03:57:01 +0000 admin http://www.jenniferdejoya.com/2010/03/buying-computer-workstation-furniture-amid-this-recession.html Amid this recession, getting computer furniture which comes at a cheaper price could be a boon for our ever-shrinking wallets. And, moreover, finding out cheap computer furniture would not be a tough job at all. But buying anything only because it seems cheaper may be called an action triggered by sheer emotional impulses.Rather, a good buyer of computer furniture keeps a range of factors in his mind before he/she sets out to have the right pick. Lets have a look on the following lines which tell you how to grab the best and the cheapest computer workstation without forcing our wallets to lose enough fat.Buying a full set of computer workstation that consists of chairs, shelves and computer desks at once can be a money saving idea. However, it may backfire if you don’t have enough space which could be accommodating enough to the shape and size of your new workstation. Thus buy that workstation only which can be installed easily otherwise you will have to lose some extra bucks to renovate the office or you may have to relocate some other office furniture elsewhere.The another money saving idea could be to buy these computer furniture such as computer chairs, computer shelves and computer desks separately. Their varying sizes can be flexible and supporting enough to help you assemble a computer workstation of your own choice easily. They could be installed without any expensive renovation of your office.Web surfing could be a useful option to have a complete detail about your potential computer workstation. However, it should be only for the sake of exploring the best and the cheapest computer workstation. Ordering to buy online can be an expensive venture as you may have to bear the shipping cost too. Moreover, don’t get deceived by the free shipping offers. They inflate the cost of the computer workstation and offer free shipping to make a fool of us.Rather, it would be a fair idea to go to the nearest computer furniture store yourself and look for the fittest computer workstation available over there. It would be better to step in only those shops which offer heavy discounts on computer furniture. Buying used computer workstations could be an icing on the cake. Remember, your bargaining skills may bring down the prices even further.People tend to buy designer computer workstations which assembling could be a hard nut to crack without proper expertise. It may be money burning attempt for you as you may need to call a carpenter to assemble it. Thus go for a simple looking computer workstation which demands no expertise to get installed.A computer workstation made of artificial or pressed wood comes comparatively cheaper than one made of natural wood. So going for the former option can be a better idea only if it is nicely polished. A qualitative polishing gives your computer furniture a near-natural look.Keep checking the temperature and humidity level of the area around your computer workstation. Increased temperature and humidity may have adverse effect on your computer furniture which can be damaging to your computers too. This effects the durability of your computer workstation negatively. Of course, you never love to spend on your computer furniture every now and then .

Digitivity.com is a trusted place to buy anything related to computers.

Pattrick Savarna is an expert technology writer online. He maintains a technology blog. Check out his blog My Electronics Blog.

]]> http://www.jenniferdejoya.com/2010/03/buying-computer-workstation-furniture-amid-this-recession.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/basic-computer-skills-knowledge-for-beginners-%e2%80%93-3-simple-tips-to-skyrocket-your-computer-beginners-skills-knowledge-faster.html http://www.jenniferdejoya.com/2010/03/basic-computer-skills-knowledge-for-beginners-%e2%80%93-3-simple-tips-to-skyrocket-your-computer-beginners-skills-knowledge-faster.html#comments Sat, 20 Mar 2010 03:53:39 +0000 admin http://www.jenniferdejoya.com/2010/03/basic-computer-skills-knowledge-for-beginners-%e2%80%93-3-simple-tips-to-skyrocket-your-computer-beginners-skills-knowledge-faster.html For how long must you remain a computer beginner? The need for each and everyone in our society today to acquire basic computer knowledge skills cannot be overlooked by anyone in this present day. Every computer beginner is now feeling the need to learn how to use a computer as faster as he or she can possibly afford to. Read on to discover three simple facts to speed up and boost your learning and gaining computer science knowledge skills faster from home. 1) Avoid using beginners’ computer training books to learn about computers.The use of computer basics training books to learn how to use computers by beginners in this modern world is one of the main reasons why so many people still spend months and even years, just to gain simple PC knowledge skills faster on their own. This system still works but certainly not for any beginner who wants to learn PC skills faster from home without attending beginners training classes.2) Make use of beginners’ video computer training lessons for learning about computers faster.The use of PC training videos specifically designed for new computer users to learn how to use a computer is by far, the best way to gain computer knowledge skills faster from home. We all love to watch interesting movies, and we all keep good memories of any particular movie that interests us. So also will the memories of whatever computer science topic we learn while watching our video lessons will ever remain fresh in our minds till a long time to come.3) Whenever Possible, use only beginners video lessons on DVDs and not on CDs for your studies.Most people never care to give importance to the use of computer beginners training tutorials recorded on simple DVDs to learn computer basic skills from home. If you truly understand the great impact this simple trick could play with your learning about computers faster on your own, you’ll never have to overlook this particular point. If you choose to use training lessons on DVDs instead of CDs, you can as well watch and learn your basic PC knowledge skills from your home DVD player, while practicing at the same time on your computer (if you have one at home). This is a hidden aspect of learning any new skills faster on your own which most people fail to give much importance.So in conclusion, if you want to move from a computer beginners training class faster and master all your beginners computer basic knowledge skills in a matter of day, make use of video tutorials preferably on DVDs and not on CDs to learn about computers faster from home. You can easily master all your PC basics in just a matter of days and soonest be the envy of your friends. Good luck with your burning desire to learn and move from your computer beginner class to a semi-professional PC user faster!

Click this Link Now! For your Beginners Computer Knowledge training video lessons to learn basic computer skills faster from home. Click here for your Free Computer Beginners Lessons Online when you sign up for your PC basic skills tutorials.

]]> http://www.jenniferdejoya.com/2010/03/basic-computer-skills-knowledge-for-beginners-%e2%80%93-3-simple-tips-to-skyrocket-your-computer-beginners-skills-knowledge-faster.html/feed/ 1 http://www.jenniferdejoya.com/2010/03/computer-glasses-for-people-over-45-experiencing-neck-pain-working-on-the-computer.html http://www.jenniferdejoya.com/2010/03/computer-glasses-for-people-over-45-experiencing-neck-pain-working-on-the-computer.html#comments Thu, 18 Mar 2010 03:53:46 +0000 admin http://www.jenniferdejoya.com/2010/03/computer-glasses-for-people-over-45-experiencing-neck-pain-working-on-the-computer.html If you are an individual that suffers from severe computer neck pain due to the type of glasses that you wear, you should continue reading this helpful guide. Now, you can successfully eliminate that pain in the neck with computer glasses or a new computer eyeglass attachment! Most individuals that wear no-line progressive lenses in their glasses, trifocals, and even bifocals suffer from some degree of pain due to the way that the head must be adjusted in order to appropriately see the information that is on the computer screen. Here, you will receive information specific to this type of pain, as well as an effective resolution that can be of benefit to you!

The Problem

Many individuals now spend more time on a computer than ever before. Many implement the use of computers for their work, while others perform certain tasks on the computer for personal reasons such as paying bills and entertainment purposes. While technology has now advanced to the point where we can do just about anything with a desktop PC or laptop, our bodies have not changed. Spending any length of time sitting in front of a computer can be detrimental to our bodies. In many instances, our back and neck area may start to tense up due to our method of sitting, as well as the adjustments that we have to make in order to see the screen, and the contents thereof. Luckily, there have been extensive studies that conclude that if one has the right computer glasses, they can not only see better, but they can feel better overall! The problem occurs if the individual sitting in front of the computer does not have the appropriate occupational computer bifocals. This is when the issue of Computer Vision Syndrome may occur.

What is Computer Vision Syndrome?

Computer Vision Syndrome is a complication that occurs as a natural result of the strain that occurs in the eyes when viewing the screen of your system. It is most common to those who fail to wear appropriate glasses for computer use. It has been found after conclusive studies that those who spend an average of two or more hours working and/or entertaining themselves on a computer experience this eye condition to some level. In addition to this, it has been found that adults and children alike are capable of experiencing this condition. It occurs due to the fact that the eyes have complications setting their focus to the words and symbols on a screen due to the method of creation. Pixels create the words that we see on our computers, and lack the same contrast as words that are written on paper.

What are the Symptoms of Computer Vision Syndrome?

There are many symptoms associated with Computer Vision Syndrome. If you experience any of these symptoms, it is a good idea to consider investing in a good pair of computer glasses. The symptoms are as follows:

• Many will experience a burning sensation in the eyes.

• Most individuals experience pain and strain in the area of the neck and shoulders that is highly bothersome.

• The vision may become blurred, and the individual may even notice that they start to see “double”.

• Headaches of varying degrees are a common complaint among those who suffer from eye strain due to the wrong type of glasses.

• Many may start to notice that they are unable to focus as well on their computer screens as they once were able to do.

• Experiencing eyes that feel tired may be common.

If you wear glasses while sitting in front of the computer, and you have noticed that you experience these symptoms, you may suffer from Computer Vision Syndrome. If so, it is a good idea to consider obtaining a pair of occupational computer glasses.

The Solution

The solution for Computer Vision Syndrome is actually quite simple. All it takes is an effective pair of computer glasses! Now, you can visit a doctor and actually receive a prescription for this type of glasses or you can convert your everyday prescription glasses into computer glasses. If you are looking to eliminate the symptoms of computer neck pain, eye strain, and sore eyes, a slip-behind computer lens may be the most effective solution for your issue. There will no longer be a need to tilt your head forward, or back to see through the lenses that you now use on your prescription eye glasses. All you have to do is simply consider computer glasses that can help eliminate that pain in the neck, and all the other symptoms associated with Computer Vision Syndrome!

Bill Valentine, Ph.D., is a Certified Ophthalmic Optician and Eye Care Professional with over 30 years experience working closely with Ophthalmology and Optometry.Bill is committed to helping you find practical eyewear solutions to all your visual needs.

http://www.spectacles.com/computer-glasses.html

]]> http://www.jenniferdejoya.com/2010/03/computer-glasses-for-people-over-45-experiencing-neck-pain-working-on-the-computer.html/feed/ 4 http://www.jenniferdejoya.com/2010/03/green-computing-with-refurbished-laptops.html http://www.jenniferdejoya.com/2010/03/green-computing-with-refurbished-laptops.html#comments Wed, 17 Mar 2010 03:52:57 +0000 admin http://www.jenniferdejoya.com/2010/03/green-computing-with-refurbished-laptops.html We no longer live in the ‘throw away’ age of discarding products simply because they have developed a small fault or we are after the latest and greatest new model. Protecting our Earth is now a big priority for most people and businesses, therefore we are adapting our lifestyles to do everything we can to help preserve our planet for future generations. Instead of throwing a laptop in the bin simply because one of the components has failed or it is no longer considered to be up-to-date, more and more people are turning to recycling or ‘refurbishing’ as an environmentally sound option.

Recycling can be done in a number of ways, selling the laptop for spares, donating it to charities that supply third world countries or by selling it to a refurbishing company such as Eflex Computers Companies such as this will offer you money for old laptops, whether they function or not, and then refurbish them and put them back into the marketplace. The refurbishing process is carried out by professionals and incorporates the following stages.

The laptop is fully wiped of all personal data, programs, software etc and taken to a ‘blank’ state. This not only protects the previous owner from having any information stolen but also ensures the system is totally clean of any viruses or issues that could prevent it functioning properly. The hardware then undergoes rigorous testing to ensure that all of the components are functioning correctly and that they still have a good life left in them. If any of the components aren’t functioning correctly or are identified as only having a short life span left they are replaced with new parts. Fresh versions of all the software including operating system, required drivers, anti-virus programs etc are then re-installed on the laptop effectively returning it to the same state as when it was first sent out of the factory.

Refurbished laptops are generally considered by a lot of people to more reliable then systems bought directly after manufacture. This is due the fact they have been operated for some time and so any issues with faulty hardware have been picked up and resolved.

Refurbished laptops offer a lot of benefits over buying a new model. The instant one you will see is the huge savings you can make on the price. For the sake of some cosmetic marks that wont effect functionality at all you can save up to 50% on high street prices. The second benefit is the huge impact on the environment. New laptops produce a lot of harmful gases and toxins during the manufacturing process that damage our environment. The refurbished option means 1 less new laptop being manufactured and 1 less old laptop sitting on the local tip!

http://www.eflexcomputers.com

]]> http://www.jenniferdejoya.com/2010/03/green-computing-with-refurbished-laptops.html/feed/ 0 http://www.jenniferdejoya.com/2010/03/a-brief-history-of-computer-graphics.html http://www.jenniferdejoya.com/2010/03/a-brief-history-of-computer-graphics.html#comments Tue, 16 Mar 2010 03:52:30 +0000 admin http://www.jenniferdejoya.com/2010/03/a-brief-history-of-computer-graphics.html The use of computer graphics can be traced as far back as 1940, when Jay Forrester at M.I.T. designed equipment for training new pilots. The digital computer was chosen as the ideal instrument, because of its adaptability and the flexibility with which the machine could be programmed. It was not until a few years later that a radar defense system project named Whirlwind showed the first practical use of computer graphics (see fig. 1.2). Whirlwind is a computer linked to radar sites, and it displays an electronic map of the location on its monitor with plot blips that represent incoming airplanes. Whirlwind is the first vacuum-tube computer capable of drawing lines and points on a computer screen.

In 1958, an experimental filmmaker, John Whitney, Sr.,created a short animation by using the analog computer to control the movement of the character. Whitney used the same system to create the opening title sequence of Alfred Hitchcock’s Vertigo. Later Whitney and his brother produced more films based on similar techniques.

In 1957, Digital Equipment Corporation (DEC) opened its company with only three employees. Three years later, DEC introduced the PDP-1 (Programmed Data Processor), the world’s first small interactive computer (see Fig. 1.3). DEC has played a huge role in the development of computer graphics. “The Programmed Data Processor (PDP-1) is a high-speed, solid state digital computer designed to operate with many types of input-output devices with no internal machine changes. It is a single address, single instruction, and stored program computer with powerful program features. Five-megacycle circuits, a magnetic core memory and fully parallel processing make possible a computation rate of 100,000 additions per second. The PDP-1 is unusually versatile.

IBM helped General Motors to develop DAC-1 to showcase General Motors’ automobiles at the Joint Computer Conference in Detroit in 1964. The breakthrough came when Ivan Sutherland at M.I.T. created a computer drawing program called Sketchpad in 1961. Sketchpad is the father of all CAD programs. Sutherland created this sketching program for his doctoral thesis at M.I.T. Lincoln Laboratory. Sketchpad allowed users to draw simple shapes on the computer with a light pen. The light pen used a small photoelectric cell in its tip to emit an electronic pulse when the pen was placed in front of a computer screen. Many software companies still use Sutherland’s Sketchpad program’s interface today. This was the first instance in the history of computer graphics that demonstrated the possibility of Computer Aided Drafting and Design (CADD). Sutherland’s Sketchpad was a perfect example of vector-based graphics comprising lines rather than being based on pixels.

The first video game was created by a student, Steve Russel, at M.I.T. in 1961. Spacewar was the world’s first video arcade game that was written for the DEC’s PDP-1. Later DEC packaged Spacewar with every new unit, so the world’s first video game was run on DEC. By the end of the 1960s, CADD began to appear in the mechanical, civil, chemical, and automobile industries. However, such advancement in digital technology had not captivated the field of architecture. The main reason for the delay was perhaps the high cost associated with CAD systems at the time.

Major corporations such as TRW, General Electric, Lockheed-Georgia and Sperry Rand began to use computer graphics. IBM introduced the first commercially available graphics computer, the IBM 2250 graphics terminal, as a result of the new found interest in computer graphics.

In 1963, the mouse was being invented by Doug Englebart of the Stanford Research Institute. At the same time, the digitizing tablet was being developed. Both the mouse and the digitizing tablet are 2D point devices; therefore you need to switch X and Y coordinates to access a Z coordinate. True 3D pointing devices come at a high cost, which is a major reason why the mouse is still a popular pointing device today. Products such as Spaceball by 3Dconnexion or 3D Controller by Logitech prove effective in 3D space. These products enable the user to pan, zoom and rotate 3D models with accurate control of the design process.

To follow is a list of important events in the 1960s that profoundly affected the future of computer graphics.1961- Whitney produced the title sequence for Alfred Hitchcock’s Vertigo by using an analog computer.1963- Doug Englebart invented the world’s first mouse. At about the same time, the digitizing tablet was developed.1966- Ralph Baer at Sanders Associates created a first video game for consumers. The same year, Sutherland at MIT invented the computer-controlled head-mounted display system. Many years later, this device is being used for virtual reality study.1968- Evan and Sutherland created the LDS-1 (Line Drawing System) for hardware-accelerated graphics. LDS-1 is more than 100 times faster than the IBM 2250.If the 1960s were an era of experimentation in computer graphics, the 1970s saw the birth of the personal computer. Many theories brought computer graphics to a new level of realism. In 1974, Ed Catmull discovered texture mapping, z-buffers and rendering curved surfaces in his Ph. D. thesis in computer science.

In 1971, Phong Bui-Toung at Utah developed a new shading method that was an improvement on the old Gouraud-shading. Phong’s shading method accurately renders the colors on a mesh surface and produces accurate reflective surface shading, but both Gouraud and Phong’s shadings have difficulties in smoothing over the outline edge of a 3D object.

In 1976, James Blinn of Utah developed a new technique called Bump mapping. Bump mapping can simulate the roughness of a surface by interpreting a grey scale map.

Today you don’t need to develop your own 3D software in order to render realistic images. You don’t have to be a millionaire to purchase a computer that runs 3D software. Creating computer rendering is not an impossible dream, but a reality.

 

 

Mi Tsung Chang is currently teaching at the City College of New York School of Architecture, Urban Design and Landscape Architecture, where he teaches courses in architecture technology, theory and CAD. Professor Chang received his bachelor of architecture degree, master of architecture degree from Pratt Institute, and a doctor of philosophy degree in architecture from the Union Institute. He is the principal of Hypnos Design. Chang currently lives in New York City.

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