Input DevicesIntroductionInput devices are devices that allow a system operator (SYSOP) to interfacewith a computer. You interface with the computer by entering yourcommands into the computer system through a keyboard, a seamer, a mouse,a trackball or joystick, a pressure sensitive or electronic tablet, or a light pen.These are all input devices.KeyboardsThe keyboard is the primary means for inputting data into the computer.Based on a standard typewriter keyboard, computer keyboards haveadditional special-purpose keys, function keys, cursor movement keys, and anumeric keypad. Keystrokes input text and characters into memory or on ascreen. Combinations of keystrokes prompt key functions such as holding,underlining, and italicizing. An enhanced keyboard minimizes keystrokes byusing function keys like F1, F2, and so forth, to access functions orcommands. The following table lists special-purpose keys and their function:Continued on next page3-6
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