megahertz (MHz). 1 000 000 hertz.
memory. Term for main storage.
meter (m). A unit of length (equivalent to 39.37 inches).
MFM. Modified frequency modulation.
MHz. Megahertz; 1 000 000 hertz.
micro
(p.). Prefix 0.000 001.
microcode.
(1)
One
or
more microinstructions. (2) A code,
representing the instructions of an instruction set, implemented in
a part of storage that
is
not program-addressable.
microinstruction.
(1)
An
instruction
of
microcode.
(2)
A basic
or
elementary machine instruction.
microprocessor.
An
integrated circuit that accepts coded
~
instructions for execution; the instructions may be entered,
integrated, or stored internally.
microsecond
(p.s).
0.000001
second.
milli
(m). Prefix 0.001.
milliampere
(rnA). 0.001 ampere.
millisecond (ms). 0.001 second.
mnemonic. A symbol chosen to assist the human memory; for
example, an abbreviation such as "mpy" for "multiply".
mode.
(1)
A method of operation; for example, the binary mode,
the interpretive mode, the alphanumeric mode.
(2)
The most
~
frequent value in the statistical sense.
modem (modulator-demodulator). A device that converts serial
(bit by bit) digital signals from a business machine (or data
Glossary-21
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