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B
backup
case the original file is lost or damaged.
Basic Input/Output System (BIOS)
baud rate
as a printer or modem, transmits information. Baud rate is
the number of signal changes per second (not necessarily
the same as bits per second). See also
Blu-ray Disc (BD)
DVDs, the format was developed to allow for more data
storage and to enable recording and playback of high-
definition video (HD).
BIOS (Basic Input/Output System)
stored in read-only memory (ROM), containing the
information the computer needs to check hardware and load
the operating system when you start up the computer.
bits per second (bps)
which information is passed between two devices. This is
the basic unit of measure used in modem communications,
and is similar, but not identical, to the baud rate. See also
baud rate
—To start the computer. The term "boot" originates from
boot
bootstrap program (as in "pulling itself up by its bootstraps"),
a program that loads and initializes the operating system.
See also
boot disk
boot priority (startup sequence)
computer accesses its internal storage drives to locate the
startup files. Under the default startup sequence, the
computer looks for the startup files in the external media
before checking the internal storage drive.
—An electrical circuit that connects the central processing
bus
unit (CPU) with other parts of the computer, such as the
video adapter, disk drives, and ports. It is the pathway
through which data flows from one device to another. See
also
bus speed
(CPU) communicates with the other parts of the computer.
—A copy of a file, usually on a removable disk, kept in
—The speed at which a communication device, such
—Offering more storage capacity than
.
reboot
.
system disk
—See
bus speed, frontside bus
—The speed at which the central processing unit
Glossary
—See
—Basic instructions,
—A way of measuring the speed at
.
—The order in which the
.
139
BIOS
.
bits per second
.
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