PCMCIA card
Personal Computer Memory Card International Association
card. A credit-card-sized device used for data storage, memory
expansion, or other purposes. PCMCIA cards are often used in
notebook computers and PCMCIA card readers.
Port
A physical socket on a computer to which you can connect a
peripheral device.
Power-on diagnostics
Tests stored in ROM that the computer runs to check its internal
circuitry, peripheral device configuration, and operating status
each time you turn it on or reset it.
Processor
A small CPU on one semiconductor chip. See also CPU.
RAM
Random Access Memory. The area of the computer’s memory
used to run programs and store data while you work. All data in
RAM is erased when you turn off or reset the computer.
Real-time clock
A battery-powered clock inside the computer that tracks the
time and date, even when the computer is turned off.
Refresh rate
The frequency with which a monitor can redraw a screen image.
The faster the refresh rate, the less the screen will flicker.
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Glossary
