Toshiba 5000 Series User Manual page 211

device driver
device driver: A program that controls
communication between a specific
peripheral device and the computer.
The CONFIG.SYS file contains device
drivers that MS-DOS loads when you
turn the computer on.
dialog box: A window that accepts
user input to make system settings or
record other information.
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 read-write head.
disk storage: Storing data on mag-
netic disk. Data is arranged on
concentric tracks much like a phono-
graph record.
diskette: A removable disk that stores
magnetically encoded data. Also
called a floppy disk.
display: A CRT, LCD, or other image
producing device used to view
computer output.
documentation: The set of manuals
and/or other instructions written for the
users of a computer system or applica-
tion. Computer system documentation
typically includes procedural and
tutorial information as well as system
functions.
DOS: Disk Operating System. See
operating system.
Glossary-6
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).
E
echo: To send back a reflection of the
transmitted data to the sending device.
You can display the information on
the screen, or output it to the printer,
or both. When a computer receives
back data it transmitted to a CRT (or
other peripheral device) and then
retransmits the data to printer, the
printer is said to echo the CRT.
EGA: Enhanced Graphics Adaptor.
A video display protocol defined by
the IBM Enhanced Graphics Adaptor
and its associated circuitry for direct
drive TTL displays that supports 16-
color/monochrome 640x350 and 16-
color 640x200 and 320x200 graphics,
and 16-color 640x350 and 320x350
text modes.
erase: See delete.
escape: 1) A code ( ASCII code 27),
signaling the computer that what
follows are commands; used with
peripheral devices such as printers and
modems. 2) A means of aborting the
task currently in progress.