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Glossary – Dell PowerEdge R410 User Manual

Page 175

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Glossary

175

Glossary

A — Ampere(s).

AC — Alternating current.

ACPI — Advanced Configuration and Power Interface. A standard interface for
enabling the operating system to direct configuration and power management.

ambient temperature — The temperature of the area or room where the system is
located.

ANSI — American National Standards Institute. The primary organization for
developing technology standards in the U.S.

asset tag — An individual code assigned to a system, usually by an administrator, for
security or tracking purposes.

backup — A copy of a program or data file. As a precaution, back up your system’s
hard drive(s) on a regular basis.

blade — A module that contains a processor, memory, and a hard drive. The modules
are mounted into a chassis that includes power supplies and fans.

BMC — Baseboard management controller.

bootable media — A CD, diskette, or USB memory key that is used to start your
system if the system will not boot from the hard drive.

BTU — British thermal unit.

bus — An information pathway between the components of a system. Your system
contains an expansion bus that allows the processor to communicate with controllers
for the peripheral devices connected to the system. Your system also contains an
address bus and a data bus for communications between the processor and RAM.

C — Celsius.

cache — A fast storage area that keeps a copy of data or instructions for quick data
retrieval.

cm — Centimeter(s).

COM

n

— The device names for the serial ports on your system.

control panel — The part of the system that contains indicators and controls, such as
the power button and power indicator.

controller — A chip or expansion card that controls the transfer of data between the
processor and memory or between the processor and a peripheral device.

book.book Page 175 Tuesday, March 31, 2009 5:26 PM