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Line 77: ==Channel programs== System/360 channel programs are a sequence of commands which are executed by the channel and the I/O device. Channel programs can be ~~locaed~~located anywhere in main storage. The channel program is a sequence of ''Channel Command Words'' (CCWs), which may be executed sequentially. Each CCW is a doubleword (eight bytes) as follows:<ref>{{cite book \|last1=IBM Corporation \|title=IBM System/360 Principles of Operation \|date=January 1967 \|pages=84-121 \|url=http://bitsavers.org/pdf/ibm/360/princOps/A22-6821-6_360PrincOpsJan67.pdf \|accessdate=Dec 4, 2019}}</ref> <pre> bit 0 7 8 31

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