Glossary
D
data bits: A data communications parameter controlling the number of bits (binary digits) used to make up a byte. If data bits = 7 the computer can generate 128 unique characters. If data bits = 8 the computer can generate 256 unique characters.
data: Information that is factual, measurable or statistical that a computer can process, store, or retrieve.
DC: Direct Current. Electric current that flows in one direction. This type of power is usually supplied by batteries.
default: The parameter value automatically selected by the system when you or the program do not provide instructions. Also called a preset value.
delete: To remove data from a disk or other data storage device. Synonymous with erase.
Desk Station V Plus: An expansion device that provides the computer with additional ports, slots and bays.
device driver: A program that controls communication between a specific peripheral device and the computer. The CONFIG.SYS file contains device drivers that
dialog box: A Windows element that requires the user to provide further information, such as number of copies to print.
disk drive: The device that randomly accesses information on a disk and copies it to the computer’s memory. It also writes data from memory to the disk. To accomplish these tasks, the unit physically rotates the disk at high speed past a
disk storage: Storing data on magnetic disk. Data is arranged on concentric tracks much like a phonograph record.
diskette: A removable disk that stores magnetically encoded data used on a microcomputer. Also called floppy disk.
display: A CRT, plasma screen, LCD, or other image producing device used to view computer output.
documentation: The set of manual and/or other instructions written for the users of a computer system or application. Computer system documentation typically includes procedural and tutorial information as well as system functions.
driver: A software program, generally part of the operating system, that controls a specific piece of hardware (frequently a peripheral device such as a printer or mouse).
Satellite A30 Series | 5 |
