Quick Reference Guide

426 Glossary
hardware. Typically, readme files provide installation information, describe new
product enhancements or corrections that have not yet been documented, and
list known problems or other things you need to be aware of as you use the software
or hardware.
real mode
An operating mode supported by 80286 or higher microprocessors, real mode
imitates the architecture of an 8086 microprocessor.
refresh rate
The rate at which the monitor redraws the video image on the monitor screen.
More precisely, the refresh rate is the frequency, measured in Hz, at which the
screen's horizontal lines are recharged (sometimes also referred to as its vertical
frequency). The higher the refresh rate, the less video flicker can be seen by the
human eye. The higher refresh rates are also noninterlaced.
remote management system
A remote management system is any system that accesses the Server
Administrator home page on a managed system from a remote location using a
supported Web browser.
See managed system.
RFI
Abbreviation for radio frequency interference.
RGB
Abbreviation for red/green/blue.
RIMM
Acronym for Rambus In-line Memory Module, which is the Rambus equivalent
of a DIMM module.
ROM
Acronym for read-only memory. Your system contains some programs essential
to its operation in ROM code. Unlike RAM, a ROM chip retains its contents even
after you turn off your system. Examples of code in ROM include the program
that initiates your system's boot routine and the POST.
rpm
Abbreviation for revolutions per minute.