Batch Operating system

Batch Operating system 

• the users of batch operating system do not interact with the computer directly.

• Each user prepares his job on an offline device like punch card and submit it to the computer operator.

• To speed up processing , jobs with similar needs are batched together and run as a group.

• thus the programmers left their program with the operators.
• the operator then sorts programs into batches similar requirement

      

    Advantages:

 Same jobs in the batch are higher executed speed.

• A process is complete its execution, next job from job spool get executed without any user interaction.

•  CPU utilization gets improved.

• To speed up the processing speed, the batch process can partition into the number of processes.

Disadvantages:

• Difficult to debug.

• If a job gets to enter in an infinite loop, other jobs wait for unknown time.

• Batch systems are costly.