IBM 3270 User Manual page 52

simulate. (1) To represent certain features of the
behavior of a physical or abstract system by the
behavior of another system; for example, to represent a
physical phenomenon by means of operations
performed by a computer or to represent the
operations of a computer by those of another computer.
(2) To imitate one system with another, primarily by
software, so that the imitating system accepts the same
data, executes the same computer programs, and
achieves the same results as the imitated system.
(3) Contrast with emulate.
simulation. (1) The representation of selected
characteristics of the behavior of one physical or
abstract system by another system. In a digital
computer system, simulation is done by software; for
example, (a) the representation of physical phenomena
by means of operations performed by a computer
system, and (b) the representation of operations of a
computer system by those of another computer system.
(2) Contrast with emulation.
telecommunication-attached. Pertaining to the
attachment of devices by teleprocessing lines to a host
processor. Synonym for remote. Contrast with
channel-attached.
terminal, in data communication, a display station or
printer capable of sending or receiving information.
terminal emulation. The capability of a
microcomputer, personal computer, 3270 CUT mode
display station, 3270 printer, ASCII display station, or
ASCII printer to operate as if it were a particular type of
terminal linked to a processing unit and to access data.
terminal multiplexer. A device, such as the 3299
Terminal Multiplexer, for interleaving the signals for
many devices onto a single coaxial cable.
terminal multiplexer adapter (TMA). This adapter is
connected to the terminal adapter in the 3174 and
provides control for a maximum of eight terminals.
SNA character string (SOS). A character string
composed of EBCDIC controls, optionally intermixed
with end-user data, that is carried within a
request/response unit.
staging adapter. (1) An addition to a System/370
Model 158 or 168 Integrated Storage Control (ISC)
feature that enables the integrated storage control to
operate in a 3850 Mass Storage System. (2) An IBM
3850 Model 3 Storage Control, which is a 3830 Model 2
Storage Control that has been modified to operate in a
3850 Mass Storage System.
station. (1) An input or output point of a system that
uses telecommunication facilities; for exampie, one or
more systems, computers, terminals, devices, and
associated programs at a particuiar location that can
send or receive data over a telecommunication line.
(2) A location in a device at which an operation is
performed, for example, a read station. (3) In SNA, a
link station.
storage. A unit into which recorded text can be
entered, in which it can be retained and processed, and
from which it can be retrieved. See also memory.
Suppress Index (SI) order. An order that generates the
suppress index character, valid only for the 3288 Model
2 printer. This character inhibits a line index to allow
overprinting.
system configuration. A process that specifies the
devices and programs that form a particular data
processing system.
token. In a local area network, the symbol of authority
passed among data stations to indicate the station
temporariiy in controi of the transmission medium.
Note: A token is a particular message or bit pattern
that signifies permission to transmit.
Token-Ring Network. (1) A ring network that allows
unidirectional data transmission between data stations
by a token-passing procedure over one transmission
medium so that the transmitted data returns to the
transmitting station. (2) A network that uses a ring
topology, in which tokens are passed in a circuit from
node to node. A node that is ready to send can capture
the token and insert data for transmission.
type. In the 3174 Establishment Controller, the
identifying number of a card. For example, 9150 is the
type number of the terminal adapter in the 3174.
U
unprotected field. A displayed field in which a user
can enter, modify, or delete data. Contrast with
protected field.
I V
V.35 communication adapter. A communication
adapter that can combine and send information on one
line at speeds up to 64 kbps, and conforms to the CCITT
V.35 standard.
X-6 Entry Assist User's Guide