Glossary
SuperLoader 3 Autoloader User’s Guide
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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 store
firmware in DLT tape drives, can be erased and reprogrammed
with new data.
EMI
Electromagnetic Interference. Electrical interference caused by
electromagnetic radiation.
