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6 Glossary
microprocessor
A semiconductor central processing unit that is the principal component of a
microcomputer. Usually contained on a single chip that includes an arithmetic logic
unit, control logic, and control-memory unit.
MIDI
Musical Instrument Digital Interface. A standard serial bus, digital interface designed to
connect electronic musical devices. MIDI has no innate sound of its own.
MIR
Medium Infrared, an infrared technology that sends data at 1.152 Mbit/second
(1,152,000 bits per second).
mode
A method of operation; for example, the NEC Versa operates in either normal or
power-saving modes.
modem
MOdulator-DEModulator. A device that links computers over a telephone line.
MPEG
The MPEG (Moving Pictures Experts Group) standard is used to encode motion
images. The MPEG player program in Windows lets you play back MPEG files.
multimedia
Integrated forms of media such as sound, text, graphics, and video.
N
nonvolatile memory
Storage media that retains its data when system power is turned off. Nonvolatile
memory in the Versa is a complementary metal oxide semiconductor (CMOS) chip
which is backed up by an internal battery. The backup battery preserves the
clock/calendar data and system configuration parameters stored in CMOS. See volatile
memory.
O
operating system
Set of programs that manage the overall operation of the computer.
overwrite
Storing information at a location where information is already stored, thus destroying
the original information.