Dell Precision 620 Manuel d'utilisateur télécharger pdf (Page 62)

A bar code label on the computer that identifies it when you call Dell 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.

SIMD

single instruction, multiple data

SIMM

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

SMART

Self-Monitoring Analysis and 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

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

workstations.

SRAM

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

SRS

sound retrieval system

SVGA

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 computer.

switch

On a computer system board, switches control various circuits or functions in your computer system. These switches are know 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 computer understands it.

system board

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

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 computer what hardware is installed and how the computer should be configured for operation.

system diskette

Synonym for bootable diskette.

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Dell Precision 620 Manuel d'utilisateur Page 62

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