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Glossary
BitBLT
BLT
board
bpi
bps
bus
cache
G
L
O
CAS
S
S
CD
A
R
CD-ROM
Y
CFM
CISC
CODEC
GL-2
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Bit Boundary BLock Transfer. A type of graphics drawing
routine that moves a rectangle of data from one area of display
memory to another. The data specifically need not have any
particular alignment.
BLock Transfer
The term more commonly used to refer to a PCB (printed
circuit board). Basically, a flat board made of nonconducting
material, such as plastic or fiberglass, on which chips and
other electronic components are mounted. Also referred to as
a circuit board or card.
bits per inch
bits per second
The pathway used to communicate between the CPU,
memory, and various input/output devices, including floppy
and hard disk drives. Available in various widths (8-, 16-, and
32-bit), with accompanying increases in speed.
A high-speed memory that resides logically between a central
processing unit (CPU) and the main memory. This temporary
memory holds the data and/or instructions that the CPU is
most likely to use over and over again and avoids accessing
the slower hard or floppy disk drive.
Column Address Strobe. The clock signal used in dynamic
RAMs to control the input of column addresses.
Compact Disc. A hard, round, flat portable storage unit that
stores information digitally.
Compact Disk Read-Only Memory
Cubic Feet per Minute
Complex-Instruction-Set Computer. A computer whose
processor is designed to sequentially run variable-length
instructions, many of which require several clock cycles, that
perform complex tasks and thereby simplify programming.
COder/DECoder
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