What type of system runs multiple programs simultaneously on multiple CPUs?

A.
Multiprocessing

B.
Multiprogramming

C.
Multitasking

D.
Multithreading

Explanation:
Answer A is correct; Multiprocessing systems run multiple programs or processes per CPU. Two types are Symmetric Multiprocessing (SMP) and Asymmetric Multiprocessing (AMP).

Incorrect Answers and Explanations: B, C, and D: Answers B, C, and D are incorrect. All use one CPU. Multiprogramming runs multiple programs simultaneously on one CPU; Multitasking runs multiple tasks simultaneously on one CPU, and multithreading runs multiple threads simultaneously on one CPU.