NEC PowerMate eco, Service And Reference Manual

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Glossary 5
password
A string of characters that the user must enter before the system allows access or system
privileges.
PCMCIA
A credit card sized peripheral interface standard for portable devices. Types of PCMCIA
cards currently offered by major vendors include fax/modems, LAN, storage cards, and
wireless communications devices.
peripheral
Input or output device not under direct computer control. A printer is a peripheral device.
pixels
Picture elements. Tiny dots that make up a screen image.
port
Provides the means for an interface between the microprocessor and external devices. A
cable connector is usually plugged into the port to attach the device to the computer.
processor
In a computer, a functional unit that interprets and executes instructions.
prompt
A special symbol indicating the beginning of an input line. Also a message that appears on
the screen indicating that the user must take a certain action.
R
RAM
Random Access Memory. A storage device into which data is entered and from which data
is retrieved in a nonsequential manner.
read
To extract data from a storage device such as a diskette.
ROM
Read-Only Memory. Memory in which stored data cannot be modified by the user except
under special conditions.
reset
The process of returning a device to zero or to an initial or arbitrarily selected condition.
resolution
The degree of screen image clarity. Video display resolution is determined by the number of
pixels on the screen. Resolution is usually specified in pixels by scan lines, for example,
640 by 480. See pixels.
RS-232C
Standard interface for serial devices.