Dell PowerVault 770N (Deskside NAS Appliance) User Manual

Page 37

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beep code

A diagnostic message in the form of a pattern of beeps from your system's speaker. For example, one beep, followed by a

second beep, and then a burst of three beeps is beep code 1-1-3.

BIOS

Acronym for basic input/output system. Your system's BIOS contains programs stored on a flash memory chip. The BIOS

controls the following:

Communications between the microprocessor and peripheral devices, such as the keyboard and the video adapter

Miscellaneous functions, such as system messages

bit

The smallest unit of information interpreted by your system.

boot routine

When you start your system, it clears all memory, initializes devices, and loads the operating system. Unless the operating

system fails to respond, you can reboot (also called warm boot) your system by pressing <Ctrl><Alt><Del>; otherwise, you

must perform a cold boot by pressing the reset button or by turning the system off and then back on.

bootable diskette

You can start your system from a bootable diskette. To make a bootable diskette, insert a diskette in the diskette drive, type
sys a:

at the command line prompt, and press <Enter>. Use this bootable diskette if your system will not boot from the hard

drive.

bps

Abbreviation for bits per second.

BTU

Abbreviation for British thermal unit.

bus

An information pathway between the components of a system. Your system contains an expansion bus that allows the

microprocessor to communicate with controllers for all the various peripheral devices connected to the system. Your system

also contains an address bus and a data bus for communications between the microprocessor and RAM.

byte

Eight contiguous bits of information, the basic data unit used by your system.

C

Abbreviation for Celsius.

cache

A fast storage area that keeps a copy of data or instructions for quicker data retrieval. For example, your system's BIOS may

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