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Portégé M200 3
Portégé M200 Version
1
Last Saved on 03/11/2003 12:04
ENGLISH using Euro_M.dot –– Printed on 03/11/2003 as IM_M20EN
C
cache memory: High speed memory which stores data that increases
processor speed and data transfer rate. When the CPU reads data
from main memory, it stores a copy of this data in cache memory.
The next time the CPU needs that same data, it looks for it in the
cache memory rather than the main memory, which saves time.
The computer has two cache levels. Level one is incorporated into
the processor and level two resides in external memory.
capacity: The amount of data that can be stored on a magnetic storage
device such as a diskette (floppy disk) or hard disk. It is usually
described in terms of kilobytes (KB), where one KB = 1024 bytes
and megabytes (MB), where one MB = 1024 KB.
card: Synonym for board. See board.
CardBus: An industry standard bus for 32bit PC Cards.
CDROM: A Compact DiskRead Only Memory is a high capacity disk
that can be read from but not written to. The CDROM drive uses
a laser, rather than magnetic heads, to read data from the disk.
Centronics: The printer manufacturer whose method of data
transmission between a parallel printer and a computer has
become an industry standard.
CGA: Colour/graphics adaptor. A video display protocol defined by the
IBM Colour/Graphics Monitor Adaptor and its associated circuitry.
This protocol supports twocolour 640x200 and fourcolour
320x200 graphics, and 16colour 640x200 and 320x200 text
modes.
character: Any letter, number, punctuation mark, or symbol used by the
computer. Also synonymous with byte.
chassis: The frame containing the computer.
chip: A small semiconductor containing computer logic and circuitry for
processing, memory, input/output functions and controlling other
chips.
CMOS: Complementary MetalOxide Semiconductor. An electronic
circuit fabricated on a silicon wafer that requires very little power.
Integrated circuits implemented in CMOS technology can be
tightly packaged and are highly reliable.
cold start: Starting a computer that is currently off (turning on the power).
COM1, COM2, COM3 and COM4: The names assigned to the serial and
communication ports.
commands: Instructions you enter at the terminal keyboard that direct
the actions of the computer or its peripheral devices.
communications: The means by which a computer transmits and
receives data to and from another computer or device. See parallel
interface; serial interface.