Carol J.

asked • 05/16/17

How long would it take to perform 1.8 times 10 to the tenth instructions?

A computer can perform 4.5 times 102  instructions in a second.
 

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Arturo O. answered • 05/16/17

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Divide the total number of instructions by the number of instructions performed per second.  That gives you the total time required in seconds.
 
t = (1.8 x 1010 instructions) / (4.5 x 102 instructions/second) = 4 x 107 seconds
 
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David W.

PLz note that modern computers (PC and Mac) perform millions or billions of instructions per second.  So, 450 is ridiculously small (and 4 * 107 seconds is ridiculously long).
 
4.5*109 instructions per second is more likely (so, PLZ check this value).
 
 
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05/16/17

Arturo O.

I agree with you, David.  But the problem statement gave 4.5 x 102 instructions per second, and I worked the problem as stated.  Perhaps the student meant to say 4.5 x 1012 instructions per second? 
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05/16/17

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