the use of dedicated telephone lines or cable television equipment to maintain a constant connection between two computers.
compact disk read-only memory; a CD that contains data a computer can read, but to which the computer cannot write new data.
central processing unit; the part of a computer that controls the computer's logic and its ability to carry out its most basic operations.
a digital storage device that houses a rigid disk, also called a hard disk, that stores information magnetically.
liquid crystal display; a type of computer monitor that uses technology that displays text and images by passing electricity through a liquid crystal solution sandwiched between two magnetic sheets.
local-area network; a group of interconnected computers in one location, such as a building or complex of buildings.
a small removable digital input module used in digital input devices such as cameras an daudio recorders.
software that enables a computer to run other software and perform basic tasks such as accepting input, processing, and sending output.
a flat-panel display that creates images by passing electrical impulses through a neon-xenon gas mixture sandwiched between two sealed glass plates with electrodes on their surfaces.
random access memory; the electronic memory in which a computer stores data temporarily while a user works with it; also called temporary memory.
a removable disk that has a storage capacity of 100 MB, 250 MB, or 750 MB and requires a Zip disk drive.
a computer part that contains millions of electronic components and that does most of a computer's processing; also called a chip.
digital video disk; a CD-like optical disk with a capacity of 4.7 GB or more that can hold a full-length commercial movie.
compact disc-recordable; a CD on which a computer can write data. Data written to this type of disc cannot be overwritten.
read-only memory; a chip containing integrated circuits that cannot be erased or reprogrammed.