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

  • #1
oldspice1212
149
2
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?
 

Answers and Replies

  • #2
Integral
Staff Emeritus
Science Advisor
Gold Member
7,253
63


How many nano seconds in a second?
 
  • #3
oldspice1212
149
2


10^9 I believe
 
  • #4
oldspice1212
149
2


So is the answer 69 nano seconds?
 
  • #5
Andre
4,509
74


No. Just shift the decimals until you have something with .... x 109 sec since you can substitute that with nano seconds
 
  • #6
nasu
3,957
583


So is the answer 69 nano seconds?

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.
 
  • #7
oldspice1212
149
2


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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