User's Manual

230 Glossary
RDRAM
Acronym for Rambus DRAM. A dynamic RAM chip technology from Rambus,
Inc. Direct RDRAMs are used in computers. Direct RDRAM chips are housed in
RIMM modules, which are similar to DIMMs but have different pin settings. The
chips can be built with dual channels, doubling the transfer rate to 3.2 GB/sec.
read-only file
A read-only file is one that you are prohibited from editing or deleting. A file can
have read-only status if:
• Its read-only attribute is enabled.
• It resides on a physically write-protected diskette or on a diskette in a write-
protected drive.
• It is located on a network in a directory to which the system administrator has
assigned read-only rights to you.
readme file
A text file included with a software package or hardware product that contains
information supplementing or updating the documentation for the software or
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.
RFI
Abbreviation for radio frequency interference.
RGB
Abbreviation for red/green/blue.