Dell PowerEdge 500SC User Manual

Page 34

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Acronym for small computer system interface. An I/O bus interface with faster data transmission rates than standard ports. You can connect up to seven
devices (15 for some newer SCSI types) to one SCSI interface.

SDMS

Abbreviation for SCSI device management system.

sec

Abbreviation for second(s).

SEC

Abbreviation for single-edge contact.

serial port

An I/O port used most often to connect a modem to your system. You can usually identify a serial port on your system by its 9-pin connector.

service tag number

A bar code label on the system that identifies it when you call Dell for customer or technical support.

SIMM

Acronym for single in-line memory module. A small circuit board containing DRAM chips that connects to the system board.

SMART

Acronym for Self-Monitoring Analysis Reporting Technology. A technology that allows hard-disk drives to report errors and failures to the system BIOS, which
then displays an error message on the screen. To take advantage of this technology, you must have a SMART-compliant hard-disk drive and the proper
support in the system BIOS.

SNMP

Abbreviation for Simple Network Management Protocol. SNMP is an industry-standard interface that allows a network manager to remotely monitor and
manage workstations.

SRAM

Abbreviation for static random-access memory. Because SRAM chips do not require continual refreshing, they are substantially faster than DRAM chips.

SVGA

Abbreviation for super 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, the number
of colors that a program can display depends on the capabilities of the monitor, the video driver, and the amount of video memory installed in the system.

switch

On a system board, switches control various circuits or functions in your system. These switches are known as DIP switches; they are normally packaged in
groups of two or more switches in a plastic case. Two common DIP switches are used on system boards: slide switches and rocker switches. The names of the
switches are based on how the settings (on and off) of the switches are changed.

syntax

The rules that dictate how you must type a command or instruction so that the system understands it.

system board

As the main circuit board, the system board usually contains most of your system's integral components, such as the following:

l

Microprocessor

l

RAM

l

Controllers for standard peripheral devices, such as the keyboard

l

Various ROM chips

Frequently used synonyms for system board are motherboard and logic board.

system configuration information

Data stored in memory that tells a system what hardware is installed and how the system should be configured for operation.

system diagnostics

A comprehensive set of diagnostic tests for your Dell system. To use the diagnostics, you must boot your system from the System Diagnostics Diskette.

system diskette

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