Epson Progression U12 - Manual (Page 205)

Port
A physical input/output socket on a computer to which you
can connect a peripheral device.
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 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.
18 Glossary