Avago Technologies LSI20160 User Manual
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Glossary of Terms and Abbreviations
A-5
Copyright © 1993–2001 by LSI Logic Corporation. All rights reserved.
Local Bus
A way to connect peripherals directly to computer memory. It bypasses
the slower ISA and EISA buses. PCI is a local bus standard.
Logical Unit
A subdivision, either logical or physical, of a SCSI device (actually the
place for the device on the SCSI bus). Most devices have only one logical
unit, but up to eight are allowed for each of the eight possible devices on a
SCSI bus.
LUN
Logical Unit Number. An identifier, zero to seven, for a logical unit.
LVD
Low Voltage Differential. LVD is a robust design methodology that
improves power consumption, data integrity, cable lengths, and support
for multiple devices, while providing a migration path for increased I/O
performance.
M
Mainboard
A large circuit board that holds RAM, ROM, the microprocessor, custom
integrated circuits, and other components that make a computer work. It
also has expansion slots for host adapters and other expansion boards.
Main Memory
The part of a computer’s memory which is directly accessible by the CPU
(usually synonymous with RAM).
Motherboard
See Mainboard.
Multitasking
The executing of more than one command at the same time. This allows
programs to operate in parallel.
Multithreading
The simultaneous accessing of data by more than one SCSI device. This
increases the data transfer rate.
N
Network
A collection of devices, such as computers and printers, that are
connected together. A network is a tool for communication that allows
users to store and retrieve information, share printers, and exchange
information.
NVRAM
Nonvolatile Random Access Memory. Actually an EEPROM
(Electronically Erasable Read Only Memory chip) used to store
configuration information.