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Types of OS

throughput
it means the number of jobs completed for unit time is called throughput of a system

1. Batch OS​

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  • If one job is finished completely then only another job will be scheduled into CPU
  • Increased cpu idleness
  • Decreased throughput of the systems
  • ex: IBM os 2

2. Multi-Programming OS​

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  • if job is leaving the CPU then the another job which is ready for execution will be scheduled on to the CPU
  • Increased CPU utilization
  • increased throughput of the system
  • ex: windows, unix, linus.

Multi-Taksing​

multi-tasking os imgae