Glossary-7
parameter
A characteristic of a device or system.
password
A string of characters that the user must enter before the
system allows access or system privileges.
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 microproc-
essor 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 nonsequen-
tial manner.
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