LUT.
Look-up
table.
m.
(1) Prefix milli; 0.001. (2) Meter.
M. (1) Prefix mega; 1,000,000. (2)
When
referring to
computer storage capacity, 1,048,576. (1,048,576
= 2
to
the
20th
power.)
mAe
Milliampere; 0.001 ampere.
machine code.
The
machine language used for entering text and
program instructions
onto
the recording medium
or
into storage
and
which is subsequently used for processing
and
printout.
machine language. (1) A language
that
is
used directly by a
machine. (2)
Deprecated
term for computer instruction code.
magnetic disk. (1) A flat circular plate with a magnetizable
surface layer
on
which
data
can
be
stored
by
magnetic recording.
(2) See also diskette.
main storage. (1) Program-addressable storage from which
instructions
and
other
data
can
be
loaded directly into registers
for subsequent execution
or
processing. (2)
Contrast
with
auxiliary storage.
mark. A symbol
or
symbols
that
indicate the beginning
or
the
end
of a field,
of
a word,
of
an
item
of
data,
or of
a set
of
data
such as a file, a record,
or
a block.
mask. (1) A
pattern
of
characters
that
is
used
to
control the
retention
or
elimination
of
portions
of
another
pattern
of
characters. (2)
To
use a
pattern
of
characters
to
control the
retention
or
elimination
of
portions
of
another
pattern
of
characters.
masked. Synonym for disabled.
matrix. (1) A rectangular array
of
elements, arranged in rows
and
columns,
that
may
be
manipulated according
to
the rules
of
matrix algebra. (2)
In
computers, a logic network in the form
of
an
array
of
input leads
and
output
leads with logic elements
connected
at
some
of
their intersections.
Glossary-20
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