Multiple choice

Which combination of the following features will suffice to characterize an OS as a multi-programmed OS ? More than one program may be loaded into main memory at the same time for execution. (B) If a program waits for certain events such as I/O, another program is immediately scheduled for execution. (C) If the execution of a program terminates, another program is immediately scheduled for execution.

  1. A

  2. A and B

  3. A and C

  4. A, B and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Multi-programmed:- More than one program can run on single CPU, when one is blocked. (1) Is true and a characteristic of multi-programmed (2) Is true & also characterise a multi-programmed OS (3) Is true but no necessary for this type this happens in all OS, even in batch processor.

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