Multiple choice

Which of the following is true for batch operating system?

  1. User of batch operating system can directly interact with computer.

  2. It reduces CPU idle time.

  3. It allows many persons to use a particular system simultaneously.

  4. CPU is idle sometimes as its speed is greater than that of I/O devices.

  5. It compromises the security and integrity of users.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In batch operating system, the program and data are gathered together in batches and then processing starts. It does not utilise the CPU efficiently as the CPU is often idle. It is because of speed difference between CPU and I/O devices.

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