Dell WorkStation 210 manual Uhdoprgh

UHDOPRGH

An operating mode supported by 80286 or higher microprocessors, real mode im- itates the architecture of an 8086 UHIUHVKmicroprocessorUDWH.

The rate at which the monitor redraws the video image on the monitor screen. More precisely, the refresh rate is the frequen- cy, measured in Hz, at which the screen’s horizontal lines are recharged (sometimes also referred to as its vertical frequency). The higher the refresh rate, the less video flicker can be seen by the human eye. The higher refresh rates are also 5),noninterlaced.

Abbreviation for radio frequency interference*% .

520Abbreviation for red/green/blue.

Acronym for read-only memory. Your computer contains some programs es- sential to its operation in ROM code. Unlike RAM, a ROM chip retains its contents even after you turn off your com- puter. Examples of code in ROM include the program that initiates your computer’s USPboot routine and the POST.

57&Abbreviation for revolutions per minute.

Abbreviation for real-time clock. Battery- powered clock circuitry inside the computer that keeps the date and time 6'5after$you0turn off the computer.

Abbreviation for synchronous dynamic random-access memory. SDRAM is a memory technology that improves the performance of your system’s memory subsystem by reducing the need for wait states. SDRAM devices have a synchro- nous interface to the devices to which they are connected and are governed by the system clock. These features reduce the need for wait states often required for

conventional memory devices to ensure that timing signals have been set up correctly.

In equivalent configurations, a computer with SDRAM will have faster memory per- formance than a computer with EDO VHFmemory.

6(&Abbreviation for second(s).

Abbreviation for single-edge contact. Newer Intel processors, such as the Pen- tium II processor, use this type of connector as an interface between the VHULDOSRUWprocessor and the system board.

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

A bar code label on the computer that identifies it when you call Dell for custom- VKDGRZLQJer or technical support.

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 6,0'40 KB) during the boot routine.

Abbreviation for Single Instruction Multi- ple6,00Data.

Acronym for single in-line memory mod- ule. A small circuit board containing DRAM chips that connects to the system board.60$57

Acronym for 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

12 Dell Precision 210 Desktop Systems User’s Guide