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Main unit
The part of the computer that houses the central processing
unit, random access memory, disk drives, and other supporting
circuitry.
MDA
Monochrome Display Adapter.
Megabyte (MB)
A unit used to measure storage space in a computer’s memory or
on a disk. One megabyte equals 1,048,576 bytes.
Megahertz (MHz)
A unit used to measure the oscillation frequency of a computer’s
internal timing clock. One megahertz is one million cycles per
second. The Equity LT-286e operates at 8 or 12 MHz.
Memory
The area where the computer stores data. Memory contents may
be permanent (ROM) or temporary (RAM). See also ROM and
RAM.
Memory expansion module
An optional component that adds memory to your computer.
Memory-resident program
A program you can access while another program is running.
An example might be a notepad utility that you can use while
working in a spreadsheet program.
Microprocessor
A CPU chip, such as the 80C286. See CPU.
Glossary 13