Adaptec AHA-2742T User Manual - Page 112

Firmware, GByte, Host Adapter, IBM PC-AT Compatible, Industry Standard Architecture, Initiator

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Glossary such a manner that each byte placed in the buffer is removed from the buffer in the same order. Firmware The software that controls and manages the host adapter. It is firm as opposed to soft because it is designed into the host adapter and cannot be modified by the user. G GByte Gigabyte. A measure of computer storage. One GByte equals approximately one billion bytes. (A byte is the amount of storage needed to hold one character.) H Host A microcomputer system in which a host adapter is installed. The host uses software to request the services of the host adapter in transferring information to and from peripheral devices attached to the SCSI host adapter. Host Adapter A printed circuit board or integrated circuit that installs in a standard microcomputer system and provides a SCSI bus connection so that SCSI devices can be connected to the microcomputer. I IBM PC-AT Compatible Any computer system that emulates exactly the IBM® PC-AT® and that uses an ISA backplane bus. Industry Standard Architecture See ISA Initiator A SCSI device that requests an operation to be performed by another SCSI device (the target). The initiator provides all the command information and parameters required to perform the operation, but the details of the operation are actually sequenced by the target. The host adapter is sometimes called the initiator. Glossary-7 Adaptec AHA-2740 Series User's Manual Stock Number: 510381-00 / Rev. C (Page G-7) Print Spec Number: 491709-00 Rev C Current Date: 9/1/93 ECN Date: 9/14/93

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such a manner that each byte placed in the buffer is removed
from the buffer in the same order.
Firmware
The software that controls and manages the host adapter. It is
firm
as opposed to
soft
because it is designed into the host
adapter and cannot be modified by the user.
G
GByte
Gigabyte. A measure of computer storage. One GByte equals
approximately one billion bytes. (A byte is the amount of storage
needed to hold one character.)
H
Host
A microcomputer system in which a host adapter is installed. The
host uses software to request the services of the host adapter in
transferring information to and from peripheral devices attached
to the SCSI host adapter.
Host Adapter
A printed circuit board or integrated circuit that installs in a
standard microcomputer system and provides a SCSI bus connec-
tion so that SCSI devices can be connected to the microcomputer.
I
IBM PC-AT Compatible
Any computer system that emulates exactly the IBM
®
PC-AT
®
and that uses an ISA backplane bus.
Industry Standard Architecture
See ISA
Initiator
A SCSI device that requests an operation to be performed by
another SCSI device (the target). The initiator provides all the
command information and parameters required to perform the
operation, but the details of the operation are actually sequenced
by the target. The host adapter is sometimes called the initiator.
Adaptec AHA-2740 Series User’s Manual
Stock Number:
510381-00
/
Rev. C
(Page G-7)
Print Spec Number:
491709-00 Rev C
Current Date:
9/1/93
ECN Date:
9/14/93
Glossary
Glossary-7