Advanced Database Management System - Tutorials and Notes: Operating Systems Question Bank with Answers 05

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Wednesday, 29 April 2020

Operating Systems Question Bank with Answers 05

What are the different methods of creating processes in operating systems?


Question:

What are the different methods of creating processes in operating systems?


Answer:
Different methods of creating processes in general purpose systems are;

  • System initialization - Creation of processes during system initialization

  • Create process system call - takes a program name or a stream with the program data

  • Copy process system call - a strange way of doing it but is now very widespread. The parent process is copied almost entirely, with changes only to the unique process id, parent process, and user-space. Each new process gets its own user space.

  • Create a new terminal session

  • Through initialization of batch jobs. Batch job is a collection, or list, of commands that are processed in sequence often without requiring user input or intervention. Batch files are often used to help load programs, run multiple processes at a time, and perform common or repetitive tasks.


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