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PQFP
Plastic Quad Flat Pack. A device that is permanently attached
(surface mounted) to your main system board rather than
fitting into a socket designed to hold it. On your system, the
processor may be surface mounted.
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 File.
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
Command prompt.
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
Write.
18 Glossary