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Math coprocessor
An optional device that enables the computer to process certain
mathematical calculations faster.
MCGA
Monochrome/Color Graphics Adapter. A type of display adapter
that runs either a monochrome or color graphics monitor.
MDA
Monochrome Display Adapter. A type of display adapter that
displays text in only one color, such as green or amber.
Megabyte (MB)
A unit used to measure storage space in a computer’s memory or
on a disk. One megabyte equals 1024KB.
Megahertz (MHz)
A unit used to measure oscillation frequency (of a computer’s
internal timing clock). A megahertz is one million cycles per
second. The Equity 286 PLUS operates at 12 MHz or 6 MHz.
Memory
The area where your computer stores data. Memory contents are
stored permanently (in ROM) or temporarily (in RAM).
Memory module
A small circuit board that contains memory chips. You can add
256KB or 1MB memory modules to the main system board
inside the computer to expand the computer’s memory. A
memory module is commonly called a SIMM (single inline
memory module).
10 Glossary