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D
data bits: A data communications parameter controlling the number of
data: Information that is factual, measurable or statistical that a computer
DC: Direct Current. Electric current that flows in one direction. This type
default: The parameter value automatically selected by the system when
delete: To remove data from a disk or other data storage device.
device driver: A program that controls communication between a
dialog box: A window that accepts user input to make system settings or
disk drive: The device that randomly accesses information on a disk and
disk storage: Storing data on magnetic disk. Data is arranged on
diskette: A removable disk that stores magnetically encoded data used
display: A CRT, plasma screen, LCD, or other image producing device
documentation: The set of manual and/or other instructions written for
DOS: Disk operating system. See operating system.
driver: A software program, generally part of the operating system, that
Portégé M200
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.
can process, store, or retrieve.
of power is usually supplied by batteries.
you or the program do not provide instructions. Also called a
preset value.
Synonymous with erase.
specific peripheral device and the computer. The CONFIG.SYS file
contains device drivers that MS DOS loads when you turn the
computer on.
record other information.
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 read write head.
concentric tracks much like a phonograph record.
on a microcomputer. Also called floppy disk.
used to view computer output.
the users of a computer system or application. Computer system
documentation typically includes procedural and tutorial
information as well as system functions.
controls a specific piece of hardware (frequently a peripheral
device such as a printer or mouse).
Glossary
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