Horizontal and vertical lines at the outside corners of camera-ready artwork which show where it should be cut (cropped) down to its final size.
cathode ray tube
(CRT) A glass vacuum tube with a fluorescent screen that glows when struck by electrons. Images are displayed by electron beams which constantly scan the screen; a variable electromagnetic field within the tube directs these beams. TV screens and computer monitors both contain cathode ray tubes.
CRT
Cathode ray tube, used in computer monitors.
crippleware
Demonstration software which is distributed in a limited form in order to entice trial users to buy it; for example, a game in which the trial user can only play the first couple of levels.
Creative Labs
A Milpitas, California manufacturer of sound cards; producer of the Game
Blaster stereo sound board, the Sound Blaster card, and the Sound Blaster
Multimedia Upgrade Kit.
cross-post
Posting a single article to several newsgroups at the same time -- generally considered inconsiderate by newsgroup members.
crash
A sudden, major failure of a computer because of hardware or software problems; often causes loss of data.
cracker
A person who breaks into computer systems, using them without authorization, either maliciously or to just to show off.