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Posts Tagged ‘Computer Science’

Computer Vision Syndrome

Thursday, January 6th, 2011

Almost everyone these days is using a computer for work or play. We spend a lot of time staring at our computer screens and many people are experiencing vision related problems. The eyestrain, blurred vision and headaches that often come with computer use are called Computer Vision Syndrome (CVS). Studies indicate that up to 80% of computer users have vision related problems or CVS. Many computer users do not associate their symptoms with the time they spend on the computer. Some assume that their headaches or eyestrain are from job stress, or that their tired eyes are an expected part of their job. Computer glasses are special glasses designed for your computer environment. They will make your computer time more productive and comfortable. One of the causes of CVS is due to the nature of text and graphics on a computer screen. The image on a monitor is created with pixels of light, which are glowing dots that are brightest at their center, with their luminance falling to zero towards their edge in a bell-shaped fashion. Print on paper usually has sharp high-contrast edges.

The human visual cortex has special cells that are very good at recognizing high-contrast edges like print on paper. These cells are important to our basic visual perception system, because much of what we see as a “thing” in the natural world is shaped by high-contrast edges. Our eyes can lock onto sharp contrast edges but have a difficult time maintaining exact focus on a pixel-created edge. When we look at a computer screen, our eyes have to exert muscular effort to focus for that distance and must ideally maintain that effort as long as we are looking at the screen. In fact, what happens is that the focusing effort gradually relaxes and then must be re-focused to the plane of the screen. Over time the muscles fatigue and CVS symptoms become apparent.

Computer Science Schools Offer Professional Education

Friday, May 7th, 2010

The study of computer science can cover a broad spectrum of computer training, and there are many different choices when researching computer science schools. Computer courses can offer training for professional certification, as well as several levels of college degrees in computer science and computer technology. The choice is up to you. The various schools for computer science across the US and Canada are designed to prepare future computer technicians, programmers, network engineers, and others for professional employment in the computer sciences field. The study of computer sciences can cover a huge range of computer technology, so it is best to think about your ultimate goal for the future before enrolling in any computer science courses.

If you are seeking professional certification in one area of computers, there are hundreds of computer schools to choose from, ranging from vocational and trade schools, all the way to colleges and universities. Some will require previous experience or training in computers, while others will allow you to start from square one. Again, prerequisites will always depend on the specific computer course.

Those who are seeking an advanced position in computer networking or information technology (IT) will do well to look into college degrees in computer science. Associate of Science Degrees (AS), Bachelor of Science Degrees (BS), and Master of Science Degrees (MS) would be the natural progression of computer science degrees. There are even some universities that offer a Doctorate of Science in Computer Science, which would be the terminal degree in this field. Obviously, the higher-level degrees will provide you with improved employment potential as well as a higher salary range.

You might also do well to include some business courses along with your computer education, especially if you are planning to enter the fields of business technology, office administration or management. Best to check with individual computer science schools to find a good curriculum to suit your aspirations. The key is to look carefully at all the choices offered in computer training before you decide on a course of action. To find out more, submit a request to some selected computer colleges on our website, and they will quickly respond with all the information you need to make a sound decision for a brighter future.