Multi Tasking and Multi ThreadingĀ | Core Java Tutorials

This “Multi Tasking and Multi Threading” is providing introduction to Multi threading in java and what is the difference between Multi tasking and Multi threading.

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Multitasking:

  • Performing more than one task simultaneously using single processor.
  • Any processor can execute a single instruction at a time.
  • When we execute more than one task, process space will be shared.
  • While performing multi tasking, the control switches between the contexts and executes instructions according to Time specification.
  • Multitasking, is the concept of optimum utilization of CPU.
  • Control unit uses two OS concepts to perform Multi tasking.
    1. Time slicing
    2. Context switching.

Processor control switches among Tasks

  • We can perform Multi Tasking depends on capability of Processor.
  • If the processor is not capable of performing Multi tasking, results abnormal termination (system hangs).

Multi Tasking in Java

 

Multi threading:

  • The only difference between Multi tasking and Multi threading is,
    • In Multi tasking, “n” process spaces required to perform “n” tasks.
    • In Multi threading, “n” threads execute in a single process space.
  • Multi tasking takes care by Operating System. No programming effort is required.
  • To implement Multi threading, we need to write program.
  • Multi threading results, less stress on the Processor, because no need to switch between the contexts to perform Multi tasking

Multi Threading in Java

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