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74181

The 74181 is a 4-bit slice arithmetic logic unit (ALU), implemented as a 7400 series TTL integrated circuit. Introduced by Texas Instruments in February 1970, it was the first complete ALU on a single chip. It was used as the arithmetic/logic core in the CPUs of many historically significant minicomputers and other devices.

Applications & Measurement

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Topic orientation

74181 at a glance

The strongest research directions include Computers and Other uses. Use the connected concepts below as starting points, not as a keyword checklist.

NOVA 1200Data General16-bitPDP-11Digital Equipment CorporationVectorbeamArcade gamePlatform

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Topics to explore

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Overview

Specifications

Significance

Education

Computers

Other uses

Advanced semantic analysis

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How this topic connects Entity context

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74181

Top relations

related to Computers · 47
74181 → About, ALU, Cogar System, Computer Automation Naked Mini, CPU, CPUs, Curiously, Data General, Datapoint, Digital Equipment Corp, Digital Equipment Corporation, Digital Equipment Corporation PDP-11, Digital Equipment Corporation PDP-12, Floating-point, FPP-12, GUI, Honeywell, Honeywell H200/H2000, ICL, Intel
related to Education · 27
74181 → ALU, Architecture Exploration, Bugbook, Build Your Computer, By, CERDIP, Computer Organization Course, CPU, Digital Electronics, Gianluca, Hardware Lab, II, Italy, Java-based, Journal, LOGIC, MEMORY, Minimal TTL Processor, Modern Engineering, Number
related to Specifications · 14
74181 → ALU, AND, DIP, Many, MSI, Multiply, NAND, NOR, OR, Right, Shift, The, TTL, XOR
related to Significance · 6
74181 → ALU, CPU, CPUs, Prior, SSI, The
related to Implemented functions · 3
74181 → It, Its, The
is a · 2
74181 → 4-bit slice arithmetic logic unit, 7400 series medium-scale integration

Important terminology Word statistics

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Important terminology

computer used logic arithmetic alu cpus functions 16-bit minicomputers microprocessors ttl carry data four cpu digital processor circuit first uses

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
74181is a4-bit slice arithmetic logic unit0.90text
74181is a7400 series medium-scale integration0.90text
74181related to ComputersMany0.60section
74181related to ComputersCPUs0.60section
74181related to ComputersNOVA0.60section
74181related to ComputersIntroduced0.60section
74181related to ComputersData General0.60section
74181related to ComputersCuriously0.60section
74181related to ComputersThe0.60section
74181related to ComputersSeveral0.60section
74181related to ComputersPDP-110.60section
74181related to ComputersMost0.60section

Related concept clusters Concept neighborhoods

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    Connections between topic areas Semantic bridges

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    Map overview Semantic statistics

    Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

    74181

    Nodes71
    Edges70
    Triples99
    Avg. degree1.97
    Density0.028169
    Components1
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