Execute Channel Program

<operating system>

(EXCP) An IBM system for low-level file access, where the programmer is completely responsible for providing a list of device-specific "channel comands" to be executed by I/O channels, control units and/or devices. The operating system will simply check the "CCW" chains for security purposes (access invalid memory or outside of file extents) and then schedule them for execution.

Last updated: 2005-08-08

Nearby terms:

executable contentexecuteExecute Channel Programexecutionexecutive

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