Table of Contents
Advertisement
Glossary
initialization The operations required for
setting a device to a starting state, before the
use of a data medium, or before
implementation of a process. (T)
Initial Program Load (IPL) The
initialization procedure that causes an
operating system to commence operation.
input/output (I/O) Pertaining to a device,
process, or channel involved in data input,
data output, or both. (IBM)
interface Hardware, software, or both, that
links systems, programs, or devices. (IBM)
interface card See input/output.
I/O See input/output.
IPL See Initial Program Load.
IRIX An operating system that runs on
Silicon Graphics and other workstations.
L
library installation The process of
installing the 9840 Tape Drive System in a
library environment.
loader The device that physically loads
cartridges for use.
link In an ESCON environment, the physical
connection and transmission medium used
between an optical transmitter and an optical
receiver. A link consists of two conductors,
one used for sending and the other for
receiving, providing a duplex communication
path.
link address In an ESCON environment, an
address assigned at initialization that
identifies a channel or control unit and
allows it to send and receive transmission
frames and perform I/O operations.
logical device address A number used to
represent a terminal or terminal component
within a workstation. (IBM)
Glossary-4
M
magnetic tape A tape with a magnetizable
layer on which data can be stored. (T)
manual operation Processing of data in a
system by direct manual techniques. (IBM)
MB Megabytes, or 1,048,576 bytes.
media defects Physical impurities or other
problems that cause the medium to function
improperly.
medium A physical material in or on which
data may be represented. (IBM)
menu A list of options displayed to the user
by a data processing system, from which the
user can select an action to be initiated. (T)
microcode A code, representing the
instructions of an instruction set, that is
implemented in a part of storage that is not
program-addressable. See also firmware.
(IBM)
Multiple Virtual Storage (MVS) IBM's
Multiple Virtual Storage, consisting of MVS/
System Product Version 1 and the MVS/370
Data Facility Product operating on a System/
370 processor. (IBM).
Multiple Virtual Storage/Enterprise
Systems Architecture (MVS/ESA) An
extended version of IBM's MVS.
MVS See Multiple Virtual Storage.
MVS/ESA See Multiple Virtual Storage/
Enterprise Systems Architecture.
N
Netware An operating system used with
Compaq and other workstations.
Nearline A registered trademark of
StorageTek. This term is used in association
with StorageTek's Automated Cartridge
System.
Ninth Edition
95739
Advertisement
Table of Contents
