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Memory module
A small circuit board, commonly called a SIMM (single inline
memory module), that contains surface-mounted memory
chips. You can add memory modules to the main system board
to expand your computer’s memory.
Microprocessor
A CPU chip, such as the 486SLC. See also CPU.
Numeric coprocessor
See Coprocessor.
Parallel
A way of organizing communications between two pieces of
computer equipment, in which the signals that make up each
character are sent simultaneously. See also Serial.
Power-on diagnostics
A set of testing routines the computer performs automatically
every time you turn it on.
RAM
Random Access Memory. The portion of the computer’s
memory that runs programs and temporarily stores data while
you work. See also ROM.
Real-time clock
A battery-powered clock in the computer that keeps track of
the current time and date even when the computer’s power is
off.
Glossary 3