IBM 8237, Installation And User Manual

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Glossary of Terms and Abbreviations
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A mechanism that allows a workstation to query
any file server running NetWare to discover the
names and addresses of all servers of a specific
type.
shielded twisted pair (STP). An electrically
conductive cable made up of one or more pairs of
individually shielded wires with a shield over all the
pairs.
SIGNAL. (1) A time-dependent value attached to a
physical phenomenon for conveying data. (2) A
variation of a physical quantity, used to convey data.
Simple Network Management Protocol (SNMP)
agent. Software stored in the device being managed
that exchanges Simple Network Management Protocol
information with a network management station.
Simple Network Management Protocol (SNMP). In
the internet suite of protocols, a network management
protocol that is used to monitor routers and attached
networks. SNMP is an application layer protocol.
Information on devices manages is defined and stored
in the application’s Management Information Base
(MIB).
SLIP. Serial Line Internet Protocol.
SNMP. Simple Network Management Protocol.
SNMP Community. A configured group of users
authorized for management access to an SNMP
enabled network device.
socket. See IPX socket.
source address. A field in the medium access control
(MAC) frame that identifies the location from which
information is sent. Contrast with
destination address.
start delimiter. The first byte of a token or frame,
consisting of a special, recognizable bit pattern.
station. (1) A communication device attached to a
network. The term used most often in LANs is an
attaching device or workstation. (2) An input or output
point of a system that uses telecommunication facilities;
for example, one or more systems, computers,
terminals, devices, and associated programs at a
particular location that can send or receive data over a
telecommunication line. See also
attaching device,
workstation.
STP. Shielded twisted pair.
subsystem. A secondary or subordinate system, or
programming support, usually capable of operating
independently of or asynchronously with a controlling
system.
switch. On an adapter, a mechanism used to select a
value for, enable, or disable a configurable option or
feature.
synchronous. (1) Pertaining to two or more processes
that depend on the occurrences of a specific event
such as common timing signal. (I) (A) (2) Occurring
with a regular or predictable timing relationship.
system. In data processing, a collection of people,
machines, and methods organized to accomplish a set
of specific functions. (I) (A)
system configuration. A process that specifies the
devices and programs that form a particular data
processing system.
system unit. (1) A part of a computer that contains the
processing unit, and may contain devices such as disk
and diskette drives. (2) In an IBM personal computer,
the unit that contains the processor circuitry, ROM,
RAM, and the I/O channel. It may have one or more
disk or diskette drives.
T
telecommunication line. Any physical medium, such
as a wire, that is used to transmit data.
telephone twisted pair. See unshielded twisted pair
(UTP).
Telnet. In TCP/IP, an application protocol that allows a
user at one site to access a remote system as if the
user’s display station were locally attached. Telnet
uses the Transmission Control Protocol as the
underlying protocol.
terminal. In data communication, a device, usually
equipped with a keyboard and display device, capable
of sending and receiving information.
terminal emulator. A program that allows a device
such as a microcomputer or personal computer to enter
and receive data from a computer system as if it were a
particular type of attached terminal.
TFTP. Trivial File Transfer Protocol.
throughput. (1) A measure of the amount of work
performed by a computer system over a given period of
time, for example, number of jobs per day. (I) (A) (2) A
measure of the amount of information transmitted over
a network in a given period of time. For example, a
network’s data transfer rate is usually measured in bits
per second.
TIA. Telecommunications Industry Association.
topology. The physical or logical arrangement of
nodes in a computer network. Examples include ring
topology and bus topology.
transceiver. Any device that can transmit and receive
traffic.
transmission medium. (1) A physical carrier of
electrical energy or electromagnetic radiation. (2) The