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document: 1) A file containing a report, letter, user guide, etc. 2) In Windows 95,
Windows 98 or Windows NT, any file that contains the information you are
working on. See also file.
documentation: The set of manuals and/or other instructions written for the users of a
computer system or program. Computer system documentation typically
includes procedural and tutorial information as well as descriptions of system
functions.
double-click: To press and release the mouse button rapidly twice without moving the
mouse. In Windows, refers to the left mouse button, unless otherwise stated.
double-density diskette: A diskette that holds up to 360 KB (5.25-inch) or 720 KB (3.5-
inch) of information.
download: 1) To receive a file from another computer through a modem. 2) To transmit
font data from the computer to a printer. See also upload.
dpi: Dots per inch. The number of ink dots printed per linear inch. For example, a printer
specification of 300 x 300 dpi means that the printer can make 300 dots per
inch both vertically and horizontally.
drag: To hold down the mouse button while moving the cursor. Refers to the left mouse
button, unless otherwise stated.
driver: See device driver.
dual in-line package (DIP): A standard for packaging integrated circuits by enclosing
them in a rectangle of ceramic or plastic with downward-pointing connection
pins.
DSP: A digital signal processor is a chip designed for real-time applications. DSP
techniques are used in PC processors as well as media engines. For example,
some high-end notebooks use a DSP chip to provide Sound Blaster emulation
as well as 28.8 modem support.
duplex: The method used to transmit data in both directions between two devices.
Synonymous with full duplex. See also half duplex, full duplex.
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