Toshiba Satellite Pro U400 User Manual download pdf (Page 166)

User’s Manual Glossary-7

Glossary

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.

execute: To interpret and execute an instruction.

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.

fingerprint sensor: The fingerprint sensor compares and analyzes the

unique characteristics in a fingerprint.

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

directs a microprocessor’s activities.

flash memory: Non-volatile memory that can be written to as well as read.

Information in flash memory remains whether or not the computer is

receiving power. This type of memory is used to retain your

fingerprint data. See also memory. Compare RAM and ROM.

floppy diskette drive (FDD): An electromechanical device that reads and

writes to floppy diskettes.

floppy diskette: A removable disk that stores magnetically encoded data.

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 labeled F1 through F12 that tell the computer to

perform certain functions.

gigabyte (GB): A unit of data storage equal to 1024 megabytes. See also

megabyte.

graphics: Drawings, pictures, or other images, such as charts or graphs, to

present information.

hard disk drive (HDD): An electromechanical device that reads and writes

a hard disk. See also hard disk.

hard disk: A storage device composed of a rigid platter or platters that can

be magnetically coded with data. Hard disks hold much more

information than diskettes and are used for long-term storage of

programs and data. The primary (or only) hard disk in a computer is

usually fixed, but some computers have secondary hard disks that

are removable. By default, the hard disk is referred to as drive C.

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Toshiba Satellite Pro U400 User Manual Page 166