SNMP Reference Guide

736 Glossary
bps
Abbreviation for bits per second.
BTU
Abbreviation for British thermal unit.
bus
An information pathway between the components of a computer. Your computer
contains an expansion bus that allows the microprocessor to communicate
with controllers for all the various peripheral devices connected to the computer.
Your computer also contains an address bus and a data bus for communications
between the microprocessor and RAM.
byte
Eight contiguous bits of information, the basic data unit used by your computer.
C
Abbreviation for Celsius.
cache
A fast storage area that keeps a copy of data or instructions for quicker data
retrieval. For example, your computer’s BIOS may cache ROM code in faster
RAM. Or, a disk-cache utility may reserve RAM in which to store frequently
accessed information from your computer’s disk drives; when a program makes a
request to a disk drive for data that is in the cache, the disk-cache utility can
retrieve the data from RAM faster than from the disk drive.
capability
Refers to the actions that an object can perform, or actions that can be taken on
a managed object. For example, if a card is hot-pluggable, it is capable of being
replaced while the system power is ON.
CDRAM
Abbreviation for cached DRAM, which is a high-speed DRAM memory chip
developed by Mitsubishi that includes a small SRAM cache.
CD-ROM
Abbreviation for compact disc read-only memory. CD drives use optical
technology to read data from CDs. CDs are read-only storage devices; you cannot
write new data to a CD with standard CD drives.