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Toshiba Portege 7140 User Manual

Page 182

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Glossary 6

User's Manual

Portege 7140CT User's Manual – 7140_UK.doc – ENGLISH – Printed on 20/12/99 as IM_714UK

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-colour/monochrome

640x350 and 16-colour 640x200 and 320x200 graphics, and 16-

colour 640x350 and 320x350 text modes.

erase: See delete.
escape guard time: A time before and after an escape code is sent to

the modem which distinguishes between escapes that are part of

the transmitted data, and escapes that are intended as a command

to the modem.

escape: 1) A code ( ASCII code 27), signalling 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.

execute: To interpret and execute an instruction.
Extended Capability Port: An industry standard that provides a data

buffer, switchable forward and reverse data transmission, and run

length encoding (RLE) support.

F

fast infrared: An industry standard that enables cableless infrared serial

data transfer at speeds of up to 4 Mbps.

file: A collection of related information; a file can contain data, programs,

or both.

firmware: A set of instructions built into the hardware which controls and

directs a microprocessor’s activities.

fixed disk: See hard disk.
floppy disk drive (FDD): An electromechanical device that reads and

writes to floppy disks. See also diskette.

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

establishes the structure of the disk that the operating system

expects before it writes files or programs onto the disk.

function keys: The keys labelled F1 through F12 that tell the computer to

perform certain functions.

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