Multiprogramming was made possible by____________________?
Correct answer: C. both A and B
- A. operating systems
- B. input/output units that operate independently of the CPU
- C. both A and B
- D. neither A nor B
Explanation
Multiprogramming requires an operating system to manage several jobs and switch between them, while independent I/O allows the CPU to work on another job during input or output operations. Both conditions support effective multiprogramming.
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