This standard applies to the design, production, use, maintenance, management, scientific research, teaching and publishing of all fields related to electronic computers and information processing. GB/T 5271.3-1987 Data Processing Vocabulary 03 Equipment Technology GB/T5271.3-1987 Standard download decompression password: www.bzxz.net

1 Overview
1.1 Introduction
National Standard of the People's Republic of China
Data processing-VocabularySection 03: Equipment technology (selected terms)
This vocabulary consists of about ten parts. This part describes the important concepts commonly used in equipment technology. UDC 621.3: 001
GB 5271.3-87
This part of the vocabulary is equivalent to the international standard ISO2382/3 "Data processing vocabulary--Part 03: Equipment technology" (1976).
1.2 Scope
This vocabulary selects terms and concise definitions of some concepts in the field of data processing, and clarifies the relationship between different concepts, so as to facilitate domestic and international exchanges.
The vocabulary involves all major aspects of data processing, including the main processing procedures and the types of equipment used, data representation, data organization, data description, computer programming and operation, peripheral equipment, data communication and other special applications. 1.3 Scope of application
This standard applies to the design, production, use, maintenance, management, scientific research, teaching and publishing of all fields related to electronic computers and information processing.
2 Principles and rules to be followed
The following rules have been detailed in Part 1 (i.e. Part 01). They are also applicable to this part and are not repeated here. Only the titles of the items are listed as follows:
Definition of terms
Composition of terms
Classification of terms
Choice of terms and terms in definitions
Polysemic terms
Use of parentheses
Use of square brackets
Use of boldface terms and asterisks in definitions 2.10 Spelling
Compilation of index tables
Terms and definitions
03 Equipment technology
Approved by the National Bureau of Standards on March 16, 1987
Implementation on December 1, 1987
Circuits and signals
03.01.01 Trigger circuit
trigger cir cuit
GB 5271.3—87
A circuit with several stable or unstable states, at least one of which can be started by an appropriate pulse to achieve the required conversion.
stable state
In a trigger circuit, a circuit state that remains unchanged before an appropriate pulse is applied. 03.01.03
Unstable state
unstable state
metastable state
quasi-stable state
quasistable state
In a trigger circuit, a state that remains unchanged only for a limited period of time. When this period of time is over, the circuit automatically returns to the stable state without the application of an external pulse. Bistable trigger circuit
bistable trigger circuit
bistable circuit
a trigger circuit with two stable states
03.01.05monostable trigger circuit
monostable trigger circuit
monostable circuit
a trigger circuit with one stable state and one unstable state. 03.01.06
delay element
delay element
a device that can produce an output signal that is substantially similar to the input signal after a given time interval. 03.01.07
delay line
delay line
a circuit or network designed to obtain the required delay in signal transmission. Impulse
impulse
A change in amplitude within a short period of time (compared to the time under consideration), with its final value alternating with its initial value. Pulse train
pulse string
A series of pulses with similar characteristics.
Clock signal
clock signal.
Clock pulse
clock pulse
A periodic signal used for synchronization.
GB 5271-3—87
Signal transformation
Signal transformation
Signal shaping
The action of modifying one or more characteristics of a signal (e.g., maximum value, shape, timing, etc.). Signal regeneration
Signal regeneration
A signal transformation that restores the original characteristics of a signal. 03.01.13
enabling signal
enabling signal
a signal that allows an event to occur.
"inhibiting" signal
inhibiting signal
a signal that prevents an event from occurring.
operation mode and processing mode
sequential
describes the characteristic that events occur in a time sequence without occurring simultaneously or overlapping. Successive
consecutive
describes the characteristic that no other event is inserted between the occurrence of two sequential events. Sequential operation
sequential operation
a processing mode in which one operation is performed after another. 03.02.04 serial
serial
describes the characteristic that two or more actions are performed sequentially in a single device. Concurrency
conc urrent
describes the property of two or more activities occurring within a given time interval. 03.02.06
concurrent operation
conc urrent operation
a processing method in which two or more operations are performed within a given time interval. Simultaneous
simultaneous operation
a processing method in which two or more events occurring at the same instant are processed simultaneously. 03.02.09
parallel operation
parallel operation
a processing method in which several operations are performed concurrently in a single device or several operations are performed concurrently or simultaneously in two or more devices.
Functional design
03.03.011
Functional design
functional design
GB 5271.3—87
A specification of the functional relationships between the various parts in a data processing system.03.03.02
Logical design
logic design
Functional design described using formal methods such as symbolic logic.Logic diagram
logic diagram
Graphical representation of logic design.
Logic symbol
logic symbol
A symbol representing an operator, function or functional relationship.Logic device
Logical device
Logical device
A device that can perform logical operations.
Sequential circuit
sequential circuit cuit
·A logic device whose output value at a given moment depends on its input value and internal state at that moment, and its internal state at that moment depends on its input value and internal state at the previous moment. Note: A sequential circuit can be regarded as a finite automaton with a finite number of internal states. 03.04.03 Combinational circuit
combinational circuit
A logic device whose output value at any time depends only on the input value at that time. Note: Combinational circuits are special cases of sequential circuits, that is, sequential circuits without storage capacity. 03.04.04 Gate
A combinatorial circuit with only one output path. 03.04.05
03.04. 06
Logic element
logic element
a device that performs basic logic operations.
“NOT” element
“NOT” gate
NOT gate
a logic element that performs the inverse operation of a Boolean operation. “Forbidden” element
NOT-IF-THEN element
“Forbidden” gate
NOT-IF-THEN
A logical element that performs the exclusion operation in Boolean operation. “AND” element
AND element
AND gate
AND gate
GB 5271.3-87
A logical element that performs the conjunction operation in Boolean operation. “Exclusive-OR” element
EXCLUSIVE -OR element
“Exclusive-OR” gate
EXCLUSIVE-OR gate
A logical element that performs the non-equivalence operation in Boolean operation. “OR” element
(INCLUSIVE .) OR element
“OR” gate
(INCLUSIVE-)OR
A logical element that performs the disjunction operation in Boolean operation. NOR element
NOR element
NOR gate
NOR gate
A logic element that performs a non-disjunctive operation in Boolean operations. Equivalence element
IF-AND-ONLY-IF element
Equivalence gate
IF-AND-ONLY-IF
A logic element that performs an equivalence operation in Boolean operations. Implication element
IF-THEN
element
Implication gate
IF-THEN
A logic element that performs an implication operation in Boolean operations. NAND element
NAND element
NOT-AND element
NAND gate
NAND gate
A logic element that performs a non-conjunctive operation in Boolean operations. “Identity” element
identity element
“Identity” gate
identity gate
A logic element that performs the identity operation in Boolean operation. “Threshold” element
threshold element
“Wide” gate
t hr eshold
A logic element that performs the threshold operation.
“Majority decision” element
majority element
“Majority decision” gate
majority gate
GB 5271.3-87
A logic element that performs the majority decision operation. 51
Concurrent operation
Concurrent(of)
Parallel operation·
Serial(of)
Monostable trigger circuit
Monostable circuit·
“Equivalent” gate…
“Equivalent” element·
“Majority decision” gate
“Majority decision” element
“Not” gates
Non-stable
“Not” element,
Functional design
“NOR”
“NOR” element
“OR” gate·
“OR” element··
“Inhibit” gate
“Inhibit” signal
“Inhibit” element…．
Logical symbols
Logical devices·
GB 5271.3-87
Chinese index
(reference)
Logical design
Logical diagram
.. 03.02.06
·03.04.12
-03.01.03
.. 03.04.11
·03.04.07
·03.04.07
·03.03.04
03.04.01
Logical elements·
Pulse·
Pulse train.
“Identical” gate
“Identical”
Timing·
Sequential circuit
Clock pulse
Clock signal
Bistable circuit…
Bistable trigger circuit
Sequential operation·
Sequential
Simultaneous operation
Simultaneous||t t||steady state·
successive
signal transformation…
signal regeneration
signal shaping·
metastable state
delay line·
·03.03.02
·03.03.03
·03.04.05
·03.02.01
: 03.04.02
：03.01.10
... 03.01.04
..·03.01.04
：03.01.02
.. 03.02.02
Delay element
“Exclusive OR” gate…
“Exclusive OR” element
Enable signal．
“NAND” gate
“NAND” element
“AND”·
“AND” element…
“Threshold” gate
GB 5271.3--87
.... 03.04.09
..... 03.01.13
.. 03.04.14
03.04.08
..03.04.16
“Threshold” element.
“Implication” gate
“Implication” element
Trigger circuit
Combinational circuit
quasi-stable·
..·03.04.13
AND element
bistable circuit
bistable trigger circuit
clock pulse.
clock signal
combinational circuit .
concurrent .
concurrent operation.
consecutiv
delay element
delay line ...
enabling signal ..
EXCLUSIVE-OR element ..
EXCLUSIVE-OR
functional design
identity element
identity gate ......
IF.. AND-ONL Y-IF element ...GB 5271.3—87
Appendix B
English index
(reference)
IF-AND-ONLY.IF
gate ...........
IF-THEN element
IF.THEN gate |09
-03.03.01
..·03.04.12
.03.04.13
impulse
(INCLUSIVE-) OR element
(INCLUSIVE-) OR gate.
inhibiting signal ..
logic design.-
logic device ..
. logic diagram.......
logic element
logic symbol
majority element
majority gate ..
metastable state:
monostable circuit ....
monostable trigger circuit
NAND element
element
NOR gate ....
NOT-AND element ..
NOT element .
NOT-IF. THEN element .......NOT-IF -THEN
parallel operation
pulse string
pulse train...
quasistable state
sequential
Sequential circuit ....
sequential operation
serial
GB 5271.3-87
早-++心
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signal regeneration ..
signal shaping
signal transformation ......simultaneous.....
simultaneous operation
stable state ....
threshold element
threshold gate-
trigger circuit
unstable state.
附加说明：
GB 5271.3--87
本标准由中华人民共和国电子工业部提出。量国业量量
本标准由成都电讯工程学院、杭州电子工业学院负责起草。本标准主要起草人张志浩、杨旭明、章镒汀、许自省、林宁、吴仲贤。56
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