Glossary Of Terms And Abbreviations - IBM 8237 Installation And User Manual

Glossary of Terms and Abbreviations

This glossary defines terms and abbreviations used in
this manual. It includes terms and definitions from the
IBM Dictionary of Computing (New York; McGraw-Hill,
Inc., 1994).
•
The symbol (A) identifies definitions from the
American National Standard Dictionary for
Information Systems, ANSI X3.172-1990, copyright
1990 by, the American National Standards Institute
(ANSI). Copies can be purchased from the
American National Standards Institute, 1430
Broadway, New York, New York 10018.
•
The symbol (E) identifies definitions from the
ANSI/EIA Standard - 440A: Fiber Optic
Terminology, copyright 1989 by the Electronics
Industries Association (EIA). Copies can be
purchased from the Electronic Industries
Association, 2001 Pennsylvania Avenue N.W.,
Washington, DC 20006.
•
The symbol (I) identifies definitions from the
Information Technology Vocabulary, developed by
Subcommittee 1, Joint Technical Committee 1, of
the International Organization for Standardization
and the International Electrotechnical Commission
(ISO/IEC JTC1/SC1).
•
The symbol (T) identifies definitions from draft
international standards, committee drafts, and
working papers being developed by ISO/IEC
JTC1/SC1.
The following cross-references are used in this
glossary:
Contrast with. This refers to a term that has an
opposed or substantively different meaning from
the IBM Dictionary of Computing
See. This refers the reader to multiple-word terms
in which this term appears.
See also. This refers the reader to terms that
have a related, but not synonymous, meaning.
Synonym for. This indicates that the term has the
same meaning as a preferred term, which is
defined in the glossary.
Special Characters
µm. Micrometer. One millionth part of one meter;
synonymous with micron.
µs. Microsecond. One millionth part of one second.
© Copyright IBM Corp. 1997
Numerics
10BASE2. An IEEE 802.3 standard for baseband
Ethernet data transmission at 10 Mbps over coaxial
cable.
10BASE-FL. An IEEE 802.3 standard for baseband
Ethernet data transmission at 10 Mbps over two
multimode optical fibers.
10BASE-T. An IEEE 802.3 standard for baseband
Ethernet data transmission at 10 Mbps over twisted
pair cabling.
100BASE-FX. An IEEE 802.3 standard for baseband
Ethernet data transmission at 100 Mbps over two
multimode optical fibers.
100BASE-TX. An IEEE 802.3 standard for baseband
Ethernet data transmission at 100 Mbps over two pairs
of category 5 unshielded balanced cable or 150-ohm
shielded balanced cable.
A
A. Ampere.
ac. Alternating current.
active. (1) Able to communicate on the network. A
network adapter is active if it is able to transmit and
receive on the network. (2) Operational. (3) Pertaining
to a node or device that is connected or is available for
connection to another node or device. (4) Currently
transmitting or receiving.
adapter. In a LAN, within a communicating device, a
circuit card that, with its associated software and/or
microcode, enables the device to communicate over
the network.
address. (1) In data communication, the IEEE-
assigned unique code or the unique locally
administered code assigned to each device or
workstation connected to a network. (2) A character,
group of characters, or a value that identifies a register,
a particular part of storage, a data source, or a data
sink. The value is represented by one or more
characters. (T) (3) To refer to a device or an item of
data by its address. (A) (4) The location in the storage
of a computer where data is stored. (5) In word
processing, the location, identified by the address
code, of a specific section of the recording medium or
storage. (T)address resolution. (1) A method for
mapping network-layer addresses to media-specific
addresses. (2) See also Address Resolution Protocol
(ARP).
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