Dell PowerEdge 4300 User Manual page 146

10 Dell PowerEdge 4300 Systems User's Guide
computer's brain." The microprocessor
contains an arithmetic processing unit and
a control unit. Software written for one
microprocessor must usually be revised
to run on another microprocessor. CPU is
a synonym for microprocessor.
Abbreviation for minute(s).
A type of data redundancy that uses a set
of physical drives to store data and one or
more sets of additional drives to store du-
plicate copies of the data. Mirroring is the
preferred data redundancy technique in
lower-capacity systems and in systems
where performance is extremely impor-
tant. See also guarding, RAID 1, and
RAID 10.
Abbreviation for millimeter(s).
A pointing device that controls the
movement of the cursor on a screen.
Mouse-aware software allows you to ac-
tivate commands by clicking a mouse
button while pointing at objects displayed
on the screen.
Abbreviation for millisecond(s).
Abbreviation for Microsoft Disk Operating
System.
Abbreviation for mean time between
failures.
A monitor that supports several video
standards. A multifrequency monitor can
adjust to the frequency range of the signal
from a variety of video adapters.
Abbreviation for millivolt(s).
Acronym for network interface card.
Acronym for nickel cadmium.
Abbreviation for nickel-metal hydride.
®
Acronym for NetWare
Module.
Abbreviation for nonmaskable interrupt. A
device sends an NMI to signal the micro-
processor about hardware errors such as
parity errors.
A technique for decreasing screen flicker
by sequentially refreshing each horizontal
line on the screen.
Abbreviation for nanosecond(s), one bil-
lionth of a second.
Abbreviation for the NT File System op-
tion in the Windows NT operating system.
Abbreviation for nonvolatile random-
access memory. Memory that does not
lose its contents when you turn off your
computer. NVRAM is used for maintain-
ing the date, time, and system setup
options.
Abbreviation for Operating System/2.
Abbreviation for one-time programmable.
An I/O port used most often to connect a
parallel printer to your computer. You can
usually identify a parallel port on your com-
puter by its 25-hole connector.
A value or option that you specify to a pro-
gram. A parameter is sometimes called a
switch or an argument .
Loadable