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Power-on diagnostics
Tests stored in a computer's 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 speed
see operating speed.
Program
A file containing coded instructions that tell the computer what
to do and how to do it. See also
Prompt
A message displayed by the operating system or a program to
request information from you or tell you what action to
perform next. see also
RAM
Random Access Memory. The portion of the computer's
memory used to run programs and store data while you work.
All data stored in RAM is erased when you turn off or reset the
computer; so you must store any data you want to keep on
disk.
Read
To gather data from one source (such as a disk) and transfer it
to a device (such as a screen or a printer). For example, when
you open a file stored on disk, the computer reads the data
from the disk and displays it on the screen. See also
18 Glossary
File.
command prompt.
Write.
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