Toshiba satellite pro 4200 notebook Manual De Usuario
Glossary 2
User's Manual
Satellite Pro 4200/4300 User's Manual – 4200_UK.doc – ENGLISH – Printed on 27/01/00 as IM_420UK
asynchronous: Lacking regular time relationship. As applied to computer
communications, asynchronous refers to the method of transmitting
data that does not require a steady stream of bits to be transmitted
at regular time intervals.
data that does not require a steady stream of bits to be transmitted
at regular time intervals.
AUTOEXEC.BAT: A batch file that executes a series of MS-DOS commands
and programs each time you start the computer. This is no longer
necessarily used when booting Windows NT 4.0 and higher.
necessarily used when booting Windows NT 4.0 and higher.
B
backup: A duplicate copy of files kept as a spare in case the original is
destroyed.
batch file: A file that can be executed from the system prompt containing
a sequence of operating system commands or executable files.
See also AUTOEXEC.BAT.
See also AUTOEXEC.BAT.
billion byte (Bi.B): A unit of data storage equal to 1,000,000,000 bytes.
See also million byte.
binary: The base two number system composed of zeros and ones (off or
on), used by most digital computers. The right most digit of a binary
number has a value of 1, the next a value of 2, then 4, 8, 16, and
so on. For example, the binary number 101 has a value of 5. See
also ASCII.
number has a value of 1, the next a value of 2, then 4, 8, 16, and
so on. For example, the binary number 101 has a value of 5. See
also ASCII.
BIOS: Basic Input Output System. The firmware that controls data flow
within the computer. See also firmware.
bit: Derived from "binary digit," the basic unit of information used by the
computer. It is either zero or one. Eight bits is one byte. See also
byte.
byte.
board: A circuit board. An internal card containing electronic components,
called chips, which perform a specific function or increase the
capabilities of the system.
capabilities of the system.
boot: Short for bootstrap. A program that starts or restarts the computer.
The program reads instructions from a storage device into the
computer’s memory.
computer’s memory.
bps: Bits per second. Typically used to describe the data transmission
speed of a modem.
buffer: The portion of the computer’s memory where data is temporarily
stored. Buffers often compensate for differences in the rate of flow
from one device to another.
from one device to another.
bus: An interface for transmission of signals, data or electric power.
byte: The representation of a single character. A sequence of eight bits
treated as a single unit; also the smallest addressable unit within
the system.
the system.