shared memory. Although it is common to allocate one task per physical or logical processor, the terms "task" and "processor" are not interchangeable.
* An activity that has business value, is initiated by a user, and is performed by software.

In z/OS specifically, it is defined precisely as:
* "In a multiprogramming or multiprocessing environment, one or more sequences of instructions treated by a control program as an element of work to be accomplished by a computer."

The term task in

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