Services of OS
An Operating System provides many services to the user .
Number of jobs are executed by the CPU simultaneously that is called Multi-Programming. In Multi-Programming, the main memory consisting of number of jobs at a time.
Advantages of Multi-Programming:
1. It can get efficient memory utilization.
2. CPU is never idle, So the performance of CPU will increase.
3. Throughput of the CPU may also increase.
Batch Processing :
A group of jobs batched together and execute at a time that is called Batch Processing.