Users Guide

164 Glossary
PPP
Abbreviation for Point-to-Point Protocol.
program diskette set
The set of diskettes from which you can perform a
complete installation of an operating system or
application program. When you reconfigure a program,
you often need its program diskette set.
protected mode
An operating mode supported by 80286 or higher
microprocessors, protected mode allows operating
systems to implement:
• A memory address space of 16 MB (80286
microprocessor) to 4 GB (Intel386 or higher
microprocessor)
• Multitasking
• Virtual memory, a method for increasing addressable
memory by using the hard drive
provider
A provider is an extension of a CIM schema that
communicates with managed objects and accesses data
and event notifications from a variety of sources.
Providers forward this information to the CIM Object
Manager for integration and interpretation.
RAC
Acronym for remote access controller.
RAID
Acronym for redundant array of independent drives.
RAM
Acronym for random-access memory. A system's
primary temporary storage area for program
instructions and data. Each location in RAM is
identified by a number called a memory address. Any
information stored in RAM is lost when you turn off
your system.
RBAC
Abbreviation for role-based access control.
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.
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.