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Glossary
LED (Light-Emitting Diode) A small electronic device that glows when
current flows through it.
LPT1 or LPT2 The name you can assign a parallel port to specify its address.
See also parallel port.
M
(Megabyte) 1,048,576 bytes. See also byte.
math coprocessor An IC that works with the microprocessor to speed up
mathematical calculations.
memory The circuitry in your computer that stores data and programs.
See also EMS, extended memory, RAM, and ROM.
microprocessor The integrated circuit that processes data and controls the basic
functions of the computer.
modem A device used to exchange information with other computers
over telephone or data lines.
module A circuit board that plugs into a dedicated connector on the
system board in your computer.
mouse A small input device that you guide on a flat surface to control
the cursor movement and operation of the computer when using
certain software programs.
N
NVRAM (Nonvolatile RAM) A type of RAM that retains its contents even
after the computer is powered off. This memory stores EISA
configuration information. See also RAM and SRAM.
O
operating system A set of programs that provides the interface between other
software programs and the computer.
P
parallel port The connector on the back of your computer that allows the
transfer of data between the computer and a parallel device,
such as a parallel printer.
partition The process of dividing the storage space on a hard disk into
separate areas so that the operating system treats them as
separate disk drives.