212 Glossary

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document — Any file created with an application and, if saved to disk, given a name by which it can be retrieved. See also file.

double-click— To press and release the pointing device’s primary button rapidly twice without moving the pointing device. In the Windows® operating system, this refers to the pointing device’s left button, unless otherwise stated.

download — (1) In communications, to receive a file from another computer through a modem or network. (2) To send font data from the computer to a printer. See also upload.

drag — To hold down the mouse button while moving the pointer to drag a selected object. In the Windows® operating system, this refers to the left mouse button, unless otherwise stated.

driver — See device driver.

DVD — An individual digital versatile (or video) disc. See also DVD-ROM.

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.

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

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

eSATA — An external device that supports hot swapping and fast data transfer. Very useful in storing and transferring large files.

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.

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Toshiba L640, L650 manual DVD-ROM Digital Versatile or Video Disc Read-Only Memory, External device See device