Glossary
Portégé A100
9
Portégé A100
Version
2
Last Saved on
25.11.2003 16:25
25.11.2003 16:0518.11.2003 14:19
ENGLISH using Palau30 Online.dot –– Printed on
28.11.2003
25.11.2003
as
N
non-system disk:
A formatted diskette (floppy disk) you can use to store
programs and data but you cannot use to start the computer.
See
system disk.
nonvolatile memory:
Memory, usually read-only (ROM), that is capable
of permanently storing information. Turning the computer’s power
off does not alter data stored in nonvolatile memory.
numeric keypad overlay:
A feature that allows you to use certain keys on
the keyboard to perform numeric entry, or to control cursor and
page movement.
O
OCR:
Optical Character Recognition (reader). A technique or device that
uses laser or visible light to identify characters and input them into
a storage device.
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 interpreting
programs, creating data files, and controlling the transmission and
receipt (input/output) of data to and from memory and peripheral
devices.
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 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.
The computer provides various levels of password protection such
as user, supervisor and eject.
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 component interconnect:
An industry standard 32-bit bus.
