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Glossary

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for all tape motion inside the drive and to write data to and

read data from the tape.

device According to SCSI specification, up to eight SCSI devices can be

connected to a single SCSI bus. Each SCSI device contains a SCSI

ID number that can be set to 0 through 7.

device driver A low-level (usually kernel-mode) operating system

component that enables a PC to communicate with peripheral

devices such as fixed disk drives, CD-ROMs, and tape drives.

Each kind of device requires a different driver. Device driver

programs are loaded into memory at boot time.

DHCP Dynamic Host Configuration Protocol. Software that

automatically assigns IP addresses to client stations logging

onto a TCP/IP network.

differential A term referring to the electrical characteristics of the

signal used on the SCSI bus interface. Differential signals

minimize the effect of common mode signal noise and allow the

SCSI bus to operate reliably over greater distances at a higher

speed.

domain A group of computers, programs, and devices on a network

administered as a unit with common procedures and rules for

use by a specific group of users. A user logs on to the domain to

gain access to the resources.

driver A software program allowing the operating system to control a

device such as a library, printer, or video card. Many devices do

not respond properly if the correct driver is not installed in the

computer.

E ECC Error Correction Code, also known as Error Checking and

Correction. The incorporation of extra parity bits in transmitted

data in order to detect errors that can be corrected by the

controller.

EDC Error Detection Code. DLT tape drives include a 16-bit EDC with

every 4 KB of user data. The EDC helps the drive detect and

recover any errors that may occur.

EEPROM Electronically-Erasable Programmable Read Only Memory. An

integrated circuit memory chip that can store programs and

data in a non-volatile state. These devices, which are used to

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Quantum EC-LLDAA-YF-B Guía de usuario Pagina 195