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Megabyte (MB)
A unit used to measure storage space in a computer’s memory
or on a disk. One megabyte equals 1024KB (kilobytes). See also
Byte.
Megahertz (MHz)
A unit used to measure oscillation frequency, such as that of a
computer’s internal clock. A megahertz is one million cycles
per second.
Memory
The circuitry in your computer that stores data for possible
retrieval. Memory contents are stored permanently (in ROM) or
temporarily (in RAM).
Memory manager
A program that controls the memory in your computer so that
different applications do not try to use the same portion of
extended memory at the same time.
Memory module
A small circuit board that contains surface-mounted memory
chips. You can add memory modules to the main system board
to expand your computer’s memory. Commonly called a SIMM
(single inline memory module).
MGA
Multi-mode Graphics Adapter. A type of display adapter card
that can display monochrome text and color graphics on the
screen.
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