Adaptec AHA-2742T User Manual - Page 113

I/O Operating Environment Software, KByte, Logical Unit, Logical Unit Number, Manager

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AHA-2740 Series User's Manual I/O Operating Environment Software Additional software that may be required in certain operating system environments in order to use some kinds of SCSI devices with the AHA-2740 Series of host adapters. For example, additional software is needed in order to install CD-ROM drives on the SCSI bus in the DOS/Windows environment. ISA Industry Standard Architecture expansion bus. A type of computer bus used in most PCs. ISA enables expansion devices like network cards, video adapters and modems to send data to and receive data from the PC's CPU and memory 16 bits at a time. Expansion devices are plugged into sockets in the PC's motherboard. ISA is sometimes called the AT bus, because it was originally introduced with the IBM PC-AT in 1983. K KByte Kilobyte. A measure of computer storage. One KByte equals 1024 bytes. (A byte is the amount of storage needed to hold one character.) L Logical Unit A physical or virtual device addressed through a target. Each target can have up to eight Logical Units. Logical Unit Number An encoded three-bit identifier for a logical unit. LU See Logical Unit LUN See Logical Unit Number M Manager See ASPI Manager. Glossary-8 Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page G-8) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93

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I/O Operating Environment Software
Additional software that may be required in certain operating sys-
tem environments in order to use some kinds of SCSI devices
with the AHA-2740 Series of host adapters. For example, addi-
tional software is needed in order to install CD-ROM drives on
the SCSI bus in the DOS/Windows environment.
ISA
Industry Standard Architecture expansion bus. A type of computer
bus used in most PCs. ISA enables expansion devices like network
cards, video adapters and modems to send data to and receive data
from the PC’s CPU and memory 16 bits at a time. Expansion
devices are plugged into sockets in the PC’s motherboard. ISA is
sometimes called the AT bus, because it was originally introduced
with the IBM PC-AT in 1983.
K
KByte
Kilobyte. A measure of computer storage. One KByte equals 1024
bytes. (A byte is the amount of storage needed to hold one
character.)
L
Logical Unit
A physical or virtual device addressed through a target. Each
target can have up to eight Logical Units.
Logical Unit Number
An encoded three-bit identifier for a logical unit.
LU
See Logical Unit
LUN
See Logical Unit Number
M
Manager
See ASPI Manager.
Adaptec AHA-2740 Series User’s Manual
Stock Number:
510381-00
/
Rev. C
(Page G-8)
Print Spec Number:
491709-00 Rev C
Current Date:
9/1/93
ECN Date:
9/14/93
AHA-2740 Series User’s Manual
Glossary-8