Which of the following need not necessarily be saved on a context switch between processes?

a) General purpose registers
b) Translation lookaside buffer
c) Program counter
d) All of the mentioned

Answer: b
Explanation: Translation Look-aside Buffer (TLB) need not necessarily be saved on a context switch between processes. A special, small, fast-lookup hardware cache is called Translation Look-aside Buffer. TLB used to reduce memory access time.

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