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When a program runs in CPU, it turns into a process. In what kind of data structure is the process stored in a system memory?

In Heap or Tree or some other data structures?

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  • $\begingroup$ What research have you done? $\endgroup$
    – Raphael
    Commented Oct 27, 2016 at 9:40

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A process is not a single data structure. In the Windows operating system, for example, a running process has a number of different structures in its memory including a copy of its PE header and its environment variables. Here is a table from a debugger showing the layout of one process after it has been loaded into memory:

memory map

The various pieces of data have different structures. For example, the PE header is a record, but the heap is usually some kind of tree or list.

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