Q.

The algorithm followed in most of the systems to perform out of order execution is                      

A. tomasulo algorithm
B. score carding
C. reader-writer algorithm
D. none of the mentioned
Answer» A. tomasulo algorithm
Explanation: the tomasulo algorithm is a hardware algorithm developed in 1967 by robert tomasulo from ibm. it allows sequential instructions that would normally be stalled due to certain dependencies to execute non-sequentially (out-of-order execution).
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