IBM Turbo 16/4 Token-Ring PC Card 2 User Manual page 118

housing for machine elements. In synchronous data link
control (SDLC), the vehicle for every command, every
response, and all information that is transmitted using
SDLC procedures. Each frame begins and ends with a
flag.
H
hard disk drive. A stand-alone disk drive that reads
and writes data on rigid disks and can be attached to a
port on the system unit. Synonymous with fixed disk
drive, hard drive.
hot plugging. The ability to remove your adapter as
long as you have shut down all the applications using
the adapter. When you insert your adapter again, you
can restart those applications.
I
initialize. In a LAN, to prepare the adapter (and
adapter support code, if used) for use by an application
program.
input/output (I/O). Pertaining to a device whose parts
can perform an input process and an output process at
the same time. Pertaining to a functional unit or channel
involved in an input process, output process, or both,
concurrently or not, and to the data involved in such a
process.
insert. To make an attaching device an active part of a
LAN.
interface. A shared boundary between two functional
units, defined by functional characteristics, common
physical interconnection characteristics, signal
characteristics, and other characteristics as appropriate.
A shared boundary. An interface may be a hardware
component to link two devices or a portion of storage or
registers accessed by two or more computer programs.
Hardware, software, or both, that links systems,
programs, or devices.
interrupt. A suspension of a process, such as
execution of a computer program, caused by an
external event and performed in such a way that the
process can be resumed. To stop a process in such a
way that it can be resumed. In data communication, to
take an action at a receiving station that causes the
sending station to end a transmission. A means of
passing processing control from one software or
microcode module or routine to another, or of requesting
a particular software, microcode, or hardware function.
interrupt level. The means of identifying the source of
an interrupt, the function requested by an interrupt, or
the code or feature that provides a function or service.
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Turbo 16/4 Token-Ring PC Card 2
L
LAN adapter. The circuit card within a communicating
device (such as a personal computer) that, together with
its associated software, enables the device to be
attached to a LAN.
LANAID. The LAN Adapter Installation and Diagnostic
program. This program works to simplify the installation
and configuration of hardware and software in a
non-Plug and Play environment.
LAN Client. IBM LAN Client is a protocol stack that
operates in protected mode in the DOS TCP/IP, Novell
IPX Client, NetBIOS, and IEEE 802.2 environments.
locally administered address. An adapter address
that the user can assign to override the universally
administered address. Contrast with universally
administered address .
M
MAC frame. Frames used to carry information to
maintain the ring protocol and for exchange of
management information.
medium access control (MAC) protocol. In a local
area network, the part of the protocol that governs
communication on the transmission medium without
concern for the physical characteristics of the medium,
but taking into account the topological aspects of the
network, in order to enable the exchange of data
between data stations.
message. A logical partition of the user device's data
stream to and from the adapter. A group of characters
and control bits transferred as an entity.
Micro Channel. The architecture used by IBM
Personal System/2 computers, Models 50 and above.
This term is used to distinguish these computers from
personal computers using a PC I/O channel, such as an
IBM PC, XT, or an IBM Personal System/2 computer,
Model 25 or 30.
N
network administrator. A person who manages the
use and maintenance of a network.
node. Any device, attached to a network, that
transmits and/or receives data. An endpoint of a link, or
a junction common to two or more links in a network. In
a network, a point where one or more functional units
interconnect transmission lines.
node address. The address of an adapter on a LAN.