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206 Glossary
probe
An electronic sensor for measuring a quantity or
determining system state at a particular point within a
system. Server Administrator can monitor temperature,
voltage, fan, memory, current and chassis intrusion probes.
The probes provide a snapshot of the measured quantity
(such as the temperature at a particular place and time)
or state (a chassis intrusion has or has not occurred).
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
The Windows NT, Windows 2000, Windows XP,
OS/2
®
, and UNIX
®
32-bit operating systems run in
protected mode. MS-DOS cannot run in protected
mode; however, some programs that you can start from
MS-DOS, such as the Windows operating system, are
able to put the computer into protected mode.
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.
PS
Abbreviation for power supply.
PS/2
Abbreviation for Personal System/2.
PXE
Abbreviation for Pre-boot eXecution Environment.
QFP
Acronym for quad flat pack.
RAC
Acronym for remote access controller. Dell
OpenManage Server Administrator supports all RACs.
These include the DRAC II, DRAC III, DRAC III/XT,
ERA, and ERA/O.
RAID
Acronym for redundant array of independent drives.
RAM
Acronym for random-access memory. The computer'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 computer.
RAMBUS
Acronym for Rambus DRAM, a type of memory
(DRAM) developed by Rambus, Inc.
RAMDAC
Acronym for random-access memory digital-to-analog
converter.
RAW
Unprocessed. The term refers to data that is passed
along to an I/O device without being interpreted. In
contrast,
cooked
refers to data that is processed before
being passed to the I/O device.
It often refers to uncompressed text that is not stored
in any proprietary format. The term comes from UNIX,
which supports cooked and raw modes for data output
to a terminal.
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.