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E
echo: To send back a reflection of the transmitted data to the sending
EGA: Enhanced Graphics Adaptor. A video display protocol defined by
erase: See delete.
escape guard time: A time before and after an escape code is sent to
escape: 1) A code (ASCII code 27), signalling the computer that what
execute: To interpret and execute an instruction.
Extended Capability Port: An industry standard that provides a data
F
fast infrared: An industry standard that enables cableless infrared serial
file: A collection of related information; a file can contain data,
firmware: A set of instructions built into the hardware which controls
fixed disk: See hard disk.
floppy disk drive (FDD): An electromechanical device that reads and
floppy disk: See diskette.
folder: An icon in Windows used to store documents or other folders.
format: The process of readying a blank disk for its first use. Formatting
function keys: The keys labelled F1 through F12 that tell the computer
6 Glossary
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.
the IBM Enhanced Graphics Adaptor and its associated circuitry
for direct drive TTL displays that supports 16-colour/monochrome
640x350 and 16-colour 640x200 and 320x200 graphics, and 16-
colour 640x350 and 320x350 text modes.
the modem which distinguishes between escapes that are part of
the transmitted data, and escapes that are intended as a
command to the modem.
follows are commands; used with peripheral devices such as
printers and modems. 2) A means of aborting the task currently in
progress.
buffer, switchable forward and reverse data transmission, and run
length encoding (RLE) support.
data transfer at speeds of up to 4 Mbps.
programs, or both.
and directs a microprocessor's activities.
writes to floppy disks. See also diskette.
establishes the structure of the disk that the operating system
expects before it writes files or programs onto the disk.
to perform certain functions.
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