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Glossary-11
microprocessor – An integrated circuit on the system board that contains the
entire central processing unit. May be considered the brain of the computer. The
speed of a microprocessor is measured in megahertz. See hertz, megahertz.
Microsoft Internet Explorer – A Web browser developed by the Microsoft
Corporation; used to view hypertext documents on intranet web sites as well as
documents on the World Wide Web.
Microsoft Windows – The family of GUI-based computer operating systems
developed by the Microsoft Corporation.
Microsoft Windows Explorer – A browser program used to access and view the
contents of data storage drives available to the computer.
Microsoft Windows NT – A network operating system developed by the
Microsoft Corporation.
MIDI – See Musical Instrument Digital Interface.
MIDI/Gameport connector – A receptacle that accepts a gamepad, joystick, or
similar device to permit more realistic game play than is possible with a mouse or
touchpad.
MMX – See multimedia extension.
modem (modulator/demodulator) – A device that converts data from a digital to
analog format at the originating computer so that it can be transmitted over
standard telephone lines. The modem at the receiving end of the transmission then
converts the data from analog back to digital format so that the receiving computer
can read it. See analog, digital.
motherboard – See system board.
Motion Picture Expert Group (MPEG) – A working group of the International
Organization for Standardization (ISO), responsible for generating data
compression standards for digital video and audio data.
mouse – A device used to move a pointer on the display as well as make selections
by clicking the buttons. See double-click, left-click, right-click.
MPEG – See Motion Picture Expert Group.
multimedia – The presence of two or more formats, such as audio, animation,
graphics, text, or video.