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Channel I/O

In computing, channel I/O is a high-performance input/output (I/O) architecture that is implemented in various forms on a number of computer architectures, especially on mainframe computers. In the past, channels were generally implemented with custom devices, variously named channel, I/O processor, I/O controller, I/O synchronizer, or DMA controller.

History, Description & Booting with channel I/O

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Overview

History

Description

Types of channels

  • Block Block (data storage)

Channel program

Channel programs in virtual storage systems

Booting with channel I/O

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Map overview Semantic statistics

Channel I/O

Nodes86
Edges85
Triples47
Avg. degree1.98
Density0.023256
Components1

How this topic connects Entity context

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Channel I/O

Top relations

related to Channel program · 19
Channel I/O → CCWs, CPU, DASD, ESA/370, For, I/O, IBM, IBM System/360, IBM System/370 Extended Architecture, IBM's Linux, In, RISC, SIO, SIOF, SSCH, System/360, System/370, The, When
related to Description · 10
Channel I/O → Channels, CPU, CPUs, I/O, I/O-intensive, On, Since, The, The CPU, There
related to history · 8
Channel I/O → Data Synchronizer, GE-600, However, I/O, IBM, Model, The, While IBM
related to Channel command words · 6
Channel I/O → CCW, CCWs, FSM, I/O, It, On
is a · 1
Channel I/O → high-performance input/output

Important terminology Word statistics

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Important terminology

channel channels program cpu system ibm data storage one block command without ccw ipl processor programs systems device operations read

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Channel I/Ois ahigh-performance input/output0.90text
ESCONinstance ofcommunication adapter0.80text
FICONinstance ofcommunication adapter0.80text
Open Systems Adapterinstance ofcommunication adapter0.80text
Channel I/Orelated to Channel command wordsCCW0.60section
Channel I/Orelated to Channel command wordsI/O0.60section
Channel I/Orelated to Channel command wordsFSM0.60section
Channel I/Orelated to Channel command wordsIt0.60section
Channel I/Orelated to Channel command wordsOn0.60section
Channel I/Orelated to Channel command wordsCCWs0.60section
Channel I/Orelated to Channel programIn0.60section
Channel I/Orelated to Channel programIBM System/3600.60section

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    Min side: 3
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