A program that helps or enables a user to use the operating system. The FCC standards for computers include limits on how much radiation may be emitted. A key that, when used with another key, produces an alternative meaning for the other key. Shift, Ctrl, and Alt, are shift keys. You must hold down a shift key for it to take effect.
Most people consider the Caps Lock key to be a shift key.
Compare toggle key . An intentional or unintentional completion of an electrical circuit. Generally refers to installing a jumper between two pins. See also open and jumper. To clear your computer of its operating system.