Enlist types of operating system. Explain multiprogramming OS in detail.


                      
Uploading: 651839 of 651839 bytes uploaded.


Types of operating system 

1.Batch Systems
 2.Multiprogramming
 3.Multitasking
 4.Time-Sharing Systems 
5.Desktop Systems
 6.Distributed system
 7.Clustered system 
8.Real Time system:

 Multiprogramming: 
 In multiprogramming, more than one program lies in the memory.
  The scheduler selects the jobs to be placed in ready queue from a number of programs.
  The ready queue is placed in memory and the existence of more than one program in main memory is known as multiprogramming. 
 Since there is only one processor, there multiple programs cannot be executed at a time.
  Instead the operating system executes part of one program, then the part of another and so on. 
 Example of multiprogramming: user can open word, excel, access and other applications in a system.