User's Manual

238 Glossary

utility

A program used to manage system resources—memory, disk drives, or printers,

for example.

UTP

Abbreviation for unshielded twisted pair.

UUID

Acronym for Universal Unique Identification.

Abbreviation for volt(s).

VAC

Abbreviation for volt(s) alternating current.

varbind

An algorithm used to assign an object identifier or OID. The varbind gives rules

for arriving at the decimal prefix that uniquely identifies an enterprise, as well as

the formula for specifying a unique identifier for the objects defined in that

enterprise's MIB.

variable

A component of a managed object. A temperature probe, for example, has a

variable to describe its capabilities, its health or status, and certain indexes that

you can use to help you locate the right temperature probe.

VCCI

Abbreviation for Voluntary Control Council for Interference.

VDC

Abbreviation for volt(s) direct current.

VESA

Acronym for Video Electronics Standards Association.

VGA

Abbreviation for video graphics array. VGA and SVGA are video standards for

video adapters with greater resolution and color display capabilities than previous

standards. To display a program at a specific resolution, you must install the

appropriate video drivers and your monitor must support the resolution. Similarly,