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Toshiba A85 User Manual

Page 249

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249

Glossary

5.375 x 8.375 ver 2.3

DVD-ROM (digital versatile [or video] disc read-only memory) — A

very high-capacity storage medium that uses laser optics for reading
data. Each DVD-ROM can hold as much data as several CD-ROMs.
Compare CD-ROM.

E

emulation — A technique in which a device or program imitates another

device or program.

enable — To turn on a computer option. See also disable.

executable file — A computer program that is ready to run. Application

programs and batch files are examples of executable files. Names of
executable files usually end with a .bat or .exe extension.

expansion device — A device that connects to a computer to expand its

capabilities. Other names for an expansion device are port expander,
port replicator, docking station, or network adapter.

extension — See file extension.

external device — See device.

F

file — A collection of related information, saved on disk with a unique

name. A file may be a program, information used by a program, or a
document. See also document.

file allocation table (FAT) — The section of a disk that keeps track of

the location of files stored on the disk.

file name — A set of characters that uniquely identifies a file within a

particular folder. It consists of two parts: the actual name and the file
name extension. See also file extension.

file extension — The three characters following the period (pronounced

“dot”) at the end of a file name. The extension indicates the type of
file. Examples are .exe for program files and .hlp for help files. See
also file name.

folder — Also called directory. A container for organizing files saved to

a disk. A folder is symbolized on screen by a graphical image (icon)
of a file folder. A folder can contain files and other folders.