Toshiba Qosmio X300 Series User Manual page 217

D
default — The setting selected by a program when the user does not
device — A component attached to the computer. Devices may be
device driver — A program (called a "driver") that permits a computer
dialog box — An on-screen window displayed by the operating system
direct current (DC) — The type of power usually supplied by batteries.
direct memory access (DMA) — A dedicated channel, bypassing the
directory — See folder.
disable — To turn a computer option off. See also enable.
disc — A round, flat piece of material, designed to be read from and
disk — A round, flat piece of material that can be magnetically
disk drive — The device that reads and writes information and programs
diskette — A thin, flexible disk in a protective jacket that stores
document — Any file created with an application and, if saved to disk,
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specify an alternative setting.
external (outside the computer's case) or internal (inside the
computer's case). Printers, disk drives, and modems are examples of
devices.
to communicate with a device.
or a program giving a direction or requesting input from the user.
DC flows in one direction. Compare alternating current (AC).
CPU, that enables direct data transfer between memory and a
device.
written to by optical (laser) technology, and used in the production
of optical discs, such as CDs and DVDs. Compare disk.
influenced to hold information in digital form, and used in the
production of magnetic disks, such as diskettes and hard disks.
Compare disc. See also diskette, hard disk.
on a diskette or hard disk. It rotates the disk at high speed past one or
more read/write heads.
magnetically encoded data. Diskettes can be removed from the
computer and come in two sizes: 5.25-inch and 3.5-inch. Your
computer uses 3.5-inch diskettes. See also double-density diskette,
high-density diskette.
given a name by which it can be retrieved. See also file.
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Glossary