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Hey guys so I've been having some trouble with this question How

  1. Sep 22, 2012 #1
    Hey guys so I've been having some trouble with this question...

    How many nanoseconds does it take for a computer to perform one calculation if it performs 6.9 × 10^7 calculations per second?
     
  2. jcsd
  3. Sep 22, 2012 #2

    Integral

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    Re: Nanoseconds

    How many nano seconds in a second?
     
  4. Sep 22, 2012 #3
    Re: Nanoseconds

    10^9 I believe
     
  5. Sep 22, 2012 #4
    Re: Nanoseconds

    So is the answer 69 nano seconds?
     
  6. Sep 22, 2012 #5
    Re: Nanoseconds

    No. Just shift the decimals until you have something with .... x 109 sec since you can substitute that with nano seconds
     
  7. Sep 22, 2012 #6
    Re: Nanoseconds

    The conversion to nanoseconds is the second step for the question. First you have to find the time for one operation, in seconds or any convenient unit. Then you can convert in nanoseconds.
    The given value is not the time for one operation but the number of operation per second.
     
  8. Sep 22, 2012 #7
    Re: Nanoseconds

    Alright so I got 14 nano seconds, I did 1 calculation/ seconds * seconds/ calculations per second which was 14 nano seconds :P
     
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