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Arrange the following configuration for CPU in decreasing order of operating speeds:

Hard wired control, Vertical microprogramming, Horizontal microprogramming.

  1. Hard wired control, Vertical microprogramming, Horizontal microprogramming.

  2. Hard wired control, Horizontal microprogramming, Vertical microprogramming.

  3. Horizontal microprogramming, Vertical microprogramming, Hard wired control.

  4. Vertical microprogramming, Horizontal microprogramming, Hard wired control.

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2 Answers

Best answer
35 votes
35 votes
Hard wired control involves only hardware, whereas microprogramming is software approach. So, hardwire control should be faster than both microprogramming approaches.

Between vertical and horizontal microprogramming. Horizontal is faster because in this control signals are not encoded whereas in vertical microprogramming to save memory signals are encoded. So, it takes less time in horizontal microprogramming because decoding of signals is not required. Therefore, final order is :

hard wired control > horizontal microprogramming > vertical microprogramming

Correct Answer: $B$
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4 votes
4 votes
Answer: B
Answer:

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