Dell PowerEdge 4600 User Manual

Page 39

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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

Abbreviation for Single Instruction Multiple Data.

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 and Reporting Technology. A technology that allows hard 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 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 diskette

System diskette is a synonym for bootable diskette.

system memory

System memory is a synonym for RAM.

System Setup program

A BIOS-based program that allows you to configure your system's hardware and customize the system's operation by setting such features as password
protection and energy management. Some options in the System Setup program require that you reboot the system (or the system may reboot automatically)
in order to make a hardware configuration change. Because the System Setup program is stored in NVRAM, any settings remain in effect until you change them
again.

system.ini file

A start-up file for the Windows operating system. When you start Windows, it consults the system.ini file to determine a variety of options for the Windows
operating environment. Among other things, the system.ini file records which video, mouse, and keyboard drivers are installed for Windows.

Running the Control Panel or Windows Setup program may change options in the system.ini file. On other occasions, you may need to change or add options

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