Q3,paper3,j 12.The concept of pipelining is most effective in improving performance if the tasks being performed in different stages :

Options (A) require different amount of time
(B) require about the same amount of time
(C) require different amount of time with time difference between any two tasks being same
(D) require different amount with time difference between any two tasks being different
Answer (B) require about the same amount of time.
Explanation. Pipelining is a technique used in advanced microprocessors where the microprocessor begins executing a second instruction before the first has been completed. A Pipeline is a series of stages, where some work is done at each stage. The work is not finished until it has passed through all stages. With pipelining, the computer architecture allows the next instructions to be fetched while the processor is performing arithmetic operations, holding them in a buffer close to the processor until each instruction operation can performed. The pipeline is divided into segments and each segment can execute it operation Once a segment completes an operations, it passes the result to the next segment in the pipeline and fetches the next operations from the preceding segmentconcurrently with the other segments. Once a segment completes an operations, it passes the result to the next segment in the pipeline and fetches the next operations from the preceding segment.