ITPEC IP April 2025 Question 17
ITPEC IP April 2025 — Question 17 of 100
CPU time is allocated among several processes in turn — rapid switching lets their execution overlap in time.
In multitasking, the operating system schedules multiple processes, giving each a time slice or otherwise switching when appropriate. On a single core, only one instruction stream executes at an instant, but the switching makes the processes progress concurrently from the user's perspective.
Answer (c)
Why not others:
- (a) describes distributed or clustered computing across networked computers
- (b) describes a multicore processor's hardware construction
- (d) describes SIMD, where one instruction applies the same operation to multiple data items
Key rule: Multitasking is an operating-system scheduling technique; multicore, clustering, and SIMD are different forms of hardware or distributed parallelism.
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