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100MHz × 64bit × 2 = 1,600MB/s ?

100MHz × 64bit × 2 = 1,600MB/s ?

Posted Oct 4, 2007 6:15 UTC (Thu) by pdfan (guest, #48029)
Parent article: What every programmer should know about memory, Part 1

100MHz × 64bit × 2 = 1,600MB/s

bash-3.2# bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
100 * 64 * 2
12800

100 * 64 * 2 / 8
1600
quit
bash-3.2#


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100MHz × 64bit × 2 = 1,600MB/s ?

Posted Dec 4, 2007 4:52 UTC (Tue) by sgifford (guest, #49399) [Link]

I was confused by the same thing; throughout section 2.2.4 it wasn't clear to me whether MB/s
meant megabytes/second or megabits/second.  Usually this abbreviation means megabytes, but the
text implied that it was megabits.  Clearing this up would make that section much... err...
clearer.

Even with that, a great article!  Thanks!


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