Motorola MVME2400 manual O S S a R Y

G L O S S A R Y

	Glossary
AUI	Attachment Unit Interface
BBRAM	Battery Backed-up Random Access Memory
bi-endian	Having big-endian and little-endian byte ordering capability.
big-endian	A byte-ordering method in memory where the address n of a word
	corresponds to the most significant byte. In an addressed memory
	word, the bytes are ordered (left to right) 0, 1, 2, 3, with 0 being the
	most significant byte.
BIOS	Basic Input/Output System. This is the built-in program that
	controls the basic functions of communications between the
	processor and the I/O (peripherals) devices. Also referred to as ROM
	BIOS.
BitBLT	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.
BLT	BLock Transfer
board	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.
bpi	bits per inch
bps	bits per second
bus	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.
cache	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.
CAS	Column Address Strobe. The clock signal used in dynamic RAMs to
	control the input of column addresses.
CD	Compact Disc. A hard, round, flat portable storage unit that stores
	information digitally.

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