Toshiba T2150CD Series, Руководство пользователя, Страница: 176 / 179

printed symbols into a computer.
See also
OCR.
on-line state:
A functional state of a peripheral device when it is ready to
receive or transmit data.
operating system: a group of programs that controls the basic operation of a
computer. Operating system functions include the interpreting programs,
creating data files, and controlling the transmission and receipt (input/output)
of data to and from memory and peripheral devices. Toshiba portable computers
use the MS-DOS operating system.
operating system disk:
The disk(s) containing the operating system.
See
system
disk.
output:
The results of a computer operation. Output commonly indicates data
1) printed on paper, 2) displayed at a terminal, 3) sent through the serial
port of internal modem, or 4) stored on some magnetic media.
P
parallel:
Refers to two or more processes or events that can occur
simultaneously, and without interfering with each other.
See also
serial.
parallel interface:
Refers to a type of information exchange that transmits
information one byte (8 bits) at a time.
See also
serial interface.
parity:
1) The symmetrical relationship between two parameter values (integers)
both of which are either on or off; odd or even; 0 or 1. 2) In serial
communications, an error detection bit that is added to a group of data bits
making the sum of the bits even or odd. Parity can be set to none, odd, or even.
password: A unique string of characters used to identify a specific user.
pel: The smallest area of the display that can be addressed by software. Equal
in size to a pixel or group of pixels.
See
pixel.
peripheral device:
An I/O device that is external to the central processor
and/or main memory such as a printer or a mouse.
pixel:
A picture element. The smallest dot that can be made on a display or
printer. Also called a pel.
pop-up window:
A window you can display at any time to change most configuration
options and monitor the charge of the battery.
port: The electrical connection through which the computer sends and receives
data to and from devices or other computers.
printed circuit board (PCB):
A hardware component of a processor to which
integrated circuits and other components are attached. The board itself is
typically flat and rectangular, and constructed of fiberglass, to form the
attachment surface.
program:
A set of instructions a computer can execute that enables it to