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MAPI (Messaging Application Programming Interface)
MAPI is a Windows operating system application that allows the user to distribute and read email between different email programs.
MIDI (Musical Instrument Digital Interface)
A musical file with the ".mid" or ".midi" extension. MIDI's are musical files in digital form. The computer is able to process midi files quickly, since they do not have to be converted from analog form. MIDI files are much smaller in size than most any other musical files. This makes them an excellent choice for Internet use.
MIPS (Million Instructions Per Second)
A computer's speed is often measured by how many million instructions per second, (or MIPS), it can perform. The CPU is responsible for decoding each instruction.
Modem (Derived from: {Mo}dulation/{Dem}odulation)
A modem converts the computers digital data into analog data, allowing it to be transmitted across telephone wires that can carry only analog signals. The modem also converts the incoming analog data back into digital data so that the computer will be able to understand it. A modem's speed is rated in bits per second, (or bps). A 56k modem is capable of handling 56,000 bits per second, although phone lines often restrict the data flow to about 28.8k. This forces a 56k modem to only be able to transmit and receive at 28.8k. Modulation converts digital pulses into analog waves for sending, (or transmitting) data. Demodulation is the process of converting the received analog carrier waves back into their original digital pulses.
Motherboard (Also called: Mainboard)
The main circuit board that connects all of the computer's components together. Everything connected to the computer, whether inside or out, communicates either directly or indirectly with the motherboard. The CPU can be found at the heart of every motherboard.
MPEG (Motion Picture Experts Group)
A leading group responsible for the standards used with compressed full motion audio/video files. MPEG files are recognized by the: ".enc", ".m1v", ".mp2", ".mp3", ".mpa", ".mpe", ".mpeg", ".mpg", ".mpv2", and other extensions. The MPEG movie file format is a very good quality file format that is close to VCR quality. The MP3 music file format is another high quality file format that is close to CD quality.
mV (MilliVolt)
A millivolt is one thousandth, (or .001), of a volt.