Question

Which can be considered as the lower level in the multitasking operating system?

(a) process

(b) task

(c) threads

(d) multi threads

This question was posed to me in unit test.

Query is from Tasks,Threads and Process in section Real Time Operating systems of Embedded Systems

Answer 1

The correct option is (c) threads

Explanation: In the multitasking operating system, the process and tasks form the higher level whereas the thread is the lower level. But in a simple operating system, there is no difference between the context switch of thread and the process.