Glossary
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 transmits the data to printer, the printer is said to echo the CRT.
enable: To turn on a computer option. See also disable.
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.
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.
execute: To interpret and execute an instruction.
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.
flash memory:
floppy diskette: A removable disk that stores magnetically encoded data.
floppy diskette drive (FDD): An electromechanical device that reads and writes to floppy diskettes.
folder: An icon in Windows used to store documents or other folders.
format: The process of preparing 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 labeled F1 through F9 that tell the computer to perform certain functions.
G
gigabyte (GB): A unit of data storage equal to 1024 megabytes. See also megabyte.
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