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Control store

A control store is the part of a CPU's control unit that stores the CPU's microprogram. It is usually accessed by a microsequencer. A control store implementation whose contents are unalterable is known as a read-only memory (ROM) or Read Only Storage (ROS); one whose contents are alterable is known as a Writable Control Store (WCS).

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Implementation

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Map overview Semantic statistics

Control store

Nodes53
Edges52
Triples47
Avg. degree1.96
Density0.037736
Components1

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Control store

Top relations

related to Writable stores · 24
Control store → DASD, Even, IBM, IML, IMPL, Initial-Microprogram Load, Many, Other, POR, Power On Reset, RAM, ROM, RTX, Some, Such, System/360, System/370, The, The System/370, This
related to Early use · 15
Control store → Balanced Capacitor Read-Only Storage, BCROS, Card Capacitor Read-Only Storage, CCROS, Early, IBM System/360, MIT Whirlwind, Model, Models, Modern VLSI, PLA, ROM, This, Transformer Read-Only Storage, TROS
related to Timing, latching and avoiding a race condition · 7
Control store → EPROMs, Historically, In, It, The, This, Very
is a · 1
Control store → part of a CPU's control unit that stores the CPU's microprogram

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Important terminology

control store writable microcode register rom wcs stores whirlwind system computer read-only use implementation microprogram machines cpu pdf project part

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Control storeis apart of a CPU's control unit that stores the CPU's microprogram0.90text
Control storerelated to Early useEarly0.60section
Control storerelated to Early useThis0.60section
Control storerelated to Early useMIT Whirlwind0.60section
Control storerelated to Early useModern VLSI0.60section
Control storerelated to Early useROM0.60section
Control storerelated to Early usePLA0.60section
Control storerelated to Early useIBM System/3600.60section
Control storerelated to Early useCCROS0.60section
Control storerelated to Early useCard Capacitor Read-Only Storage0.60section
Control storerelated to Early useModel0.60section
Control storerelated to Early useTROS0.60section

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    Min side: 3
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