Toshiba Satellite C640 Series User Manual page 156

D
data bits: A data communications parameter controlling the number of bits
data: Information that is factual, measurable or statistical that a computer
DC: Direct Current. Electric current that flows in one direction. This type of
default: The parameter value automatically selected by the system when
delete: To remove data from a disk or other data storage device.
device driver: A program that controls communication between a specific
dialog box: A window that accepts user input to make system settings or
Digital Audio: An audio compression standard that enables high-quality
disk drive: The device that randomly accesses information on a disk and
disk storage: Storing data on magnetic disk. Data is arranged on
display: A CRT, LCD, or other image producing device used to view
documentation: The set of manuals and/or other instructions written for
DOS: Disk Operating System. See operating system.
driver: A software program, generally part of the operating system, that
DVB-T (Digital Video Broadcasting - Terrestrial): Also known as
DVD-R (+R, -R): A Digital Versatile Disc Recordable disk can be written
DVD-R DL: A disc having two layers on one side with the DVD-R storage
User's Manual
(binary digits) used to make up a byte. If data bits = 7 the computer
can generate 128 unique characters. If data bits = 8 the computer
can generate 256 unique characters.
can process, store, or retrieve.
power is usually supplied by batteries.
you or the program do not provide instructions. Also called a preset
value.
Synonymous with erase.
peripheral device and the computer. The CONFIG.SYS file contains
device drivers that MS-DOS loads when you turn the computer on.
record other information.
transmission and real-time playback of sound files.
copies it to the computer's memory. It also writes data from memory
to the disk. To accomplish these tasks, the unit physically rotates the
disk at high speed past a read-write head.
concentric tracks much like a phonograph record.
computer output.
the users of a computer system or application. Computer system
documentation typically includes procedural and tutorial information
as well as system functions.
controls a specific piece of hardware (frequently a peripheral device
such as a printer or mouse).
terrestrial digital TV. Digital TV broadcasting standard.
once and read many times. The DVD-R drive uses a laser to read
data from the disc.
capacity about 1.8 times larger than before. The DVD-RW drive
uses a laser to read data from the disc.
Glossary
Glossary-6