Concept:A wait state is an extra delay introduced when the processor accesses memory that is slower than needed.
Zero wait state means the processor faces no such delay.
Explanation:In computer hardware, the processor requests data from memory, and the memory must respond within a certain time.
If the memory is slower than the processor, the processor is forced to remain idle for some clock cycles.
Those idle cycles are called wait states.
When the wait state is
0, the memory responds immediately without any idle cycle.
This is only possible when the memory speed matches the processor speed exactly.
If memory were slower than the processor, wait states would be greater than zero.
If memory were faster than the processor, the processor itself would be the limiting factor, not the memory.
Hence, a wait state of zero indicates that the processor and memory are equally matched in speed.
Answer:D. The processor and the memory are equally matched in speed.