Definition: A screen is made up of thousands of dots, called pixels ("picture elements"), arranged on the screen in columns and rows. The characters, pictures and shapes that appear on the screen are created by changing the colors of these dots. The resolution of a monitor is the number of pixels used within it, and is given as two numbers for instance "1280 by 800" (1280 across the screen and 800 down). With a larger number of pixels ("higher resolution"), screen objects can be shown in more detail and mor

Category: technology

Credit: RNIB

Source: http://www.rnib.org.uk/livingwithsightloss/computersphones/pages/glossary.aspx