A pixel is a single point of light on a computer screen. The pixel count (or screen resolution) of a computer screen is very important from a human factors standpoint.
The higher the number of pixels (or dots) per inch on a computer monitor, the easier it is to read. A piece of paper is a surprisingly high-resolution "screen" compared to a computer monitor; a good quality magazine has at least 10 times the number of dots per inch.
Why do you care? The relatively poor resolution of computer monitors is what causes people to read at least 25% LESS material online. So, should you use the same writing techniques on a web page as you do on a print ad? Obviously not, if you know that people will get tired much more quickly, and are disposed to read less material online. TheSiteDoctor.com will check your website for a number of different guidelines for good writing on the web.
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