Processes - Features, Properties

Q.  Which of the following is correct regarding process in operating system?
- Published on 17 Jun 15

a. a program is a passive entity
b. process is an active entity.
c. A process is the unit of work.
d. All of the above.

ANSWER: All of the above.

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    Discussion

  • Nirja Shah   -Posted on 25 Nov 15
    - A process is an instance of a program in execution.

    - A program is a passive entity while a process is an active entity performing the intended functions to its related program.

    - It is the smallest unit of work that is independently schedulable.

    - To accomplish its tasks it needs certain resources like CPU time, memory, files and other I/O devices.

    - These resources are allocated to the process either at the time of its creation of when its executing.

    - In a multi-programming environment there will be a number of simultaneous processes existing in the system; some of these will be system processes and other will be user processes.

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