The paper version of a document, as opposed to the version on disk or tape.

A communications channel which transmits data in either direction, but only one direction at a time.

A reproduction of a grayscale image which uses dots of varying size or density to give the impression of areas of gray.

Writing a program in a programming language, rather than using high-level programming tools to create the program.

A scanner that is held in the hand and passed across the image to be scanned. Hand-held scanners are less expensive than desktop scanners, but require a steady hand to get a clear image.

In graphics programs, handles are little squares that appear at the edges of selected images or text blocks, which can be used to change the size, shape, or orientation of the selected material.

A nickname that is used online.

The part of a telephone that is held in the hand, containing the speaker and microphone.

Booting a system from power off. Sometimes a computer which is "locked up," or "frozen," must be turned off and on again to clear the memory before it can be operated. A soft boot is restarting the computer without turning the power off.

(HDD). A disk drive that reads from and writes to a hard disk.