Users Guide

Glossary 179
service tag number
A bar code label that identifies each system in the event that you need to call for
customer or technical support.
shadowing
A computer's system and video BIOS code is usually stored on ROM chips.
Shadowing refers to the performance-enhancement technique that copies BIOS
code to faster RAM chips in the upper memory area (above 640 KB) during the
boot routine.
SIMM
Acronym for single in-line memory module. A small circuit board containing
DRAM chips that connects to the system board.
SMTP
Abbreviation for Simple Mail Transfer Protocol.
SNMP
Abbreviation for Simple Network Management Protocol. SNMP, a popular
network control and monitoring protocol, is part of the original TCP/IP protocol
suite. SNMP provides the format in which vital information about different
network devices, such as network servers or routers, can be sent to a management
application.
SRAM
Abbreviation for static random-access memory. Because SRAM chips do not
require continual refreshing, they are substantially faster than DRAM chips.
SSL
Abbreviation for secure socket layer.
state
Refers to the condition of an object that can have more than one condition.
For example, an object may be in the "not ready" state.
status
Refers to the health or functioning of an object. For example, a temperature probe
can have the status normal if the probe is measuring acceptable temperatures.
When the probe begins reading temperatures that exceed limits set by the user,
it reports a critical status.