Explain Batch operating systems.
Batch operating systems: A batch is a sequence of jobs. Such batch is submitted to batch processing operating systems moreover output would show some later time in the form of a program or like program error. For speed-up processing same jobs are batched together. The main task of batch operating systems is to transfer control automatically from one job to next. Now there the operating is always in the memory.
(i) This is lack of interaction between job and user while executing
(ii) Turnaround time is more.
(iii) CPU is often idle; due to 1/0 devices are very slow.