![](https://seccdn.libravatar.org/avatar/a6ca96b879f878a7a13d68b48fd59a90.jpg?s=120&d=mm&r=g)
Darryl Gregorash wrote:
On 11/20/2005 10:51 AM, Tasana Computers wrote:
<snip>
1GB in computer memory is = to 1,073,741,824 so there for 4x1,073,741,824 = 4,294,967,296 1GB does not =1,000,000,000 as some think when applied to computer memory.
Only because we failed to shoot the very first person who said it in public.
Now, I have a couple of very serious questions for you: you allege K=1024, M=1048576 and G=1073741824 when it comes to computers.
Question 1: is a teraflop 2^40 flops, 10^12 flops, or one million times 2^20 flops? I really want to know, because I just read about a Linux cluster that IBM built very recently, that is capable of 176 teraflops; they say it is the fastest of its kind in the world, nearly by a factor of 2, and I really want to know just how fast "fast" is.
Question 2: The inverse of "giga" is "nano", and I have heard of new transistors having a 2 nm (nanometer) boundary at the P-N interface layer. Would that be 2 times 10^-9 meters, or would it be 2^-29 meters? Getting this question right is critical, because it has a direct bearing on your answer to question 1.
Oh, what the heck, I'll give you the bonus question now. My CPU is (nominally) rated at 400 MHz. Is that 400*10^6 Hz, or is it 100*2^22 Hz?
Simple. 400MHz (in computing terms) = 400 * 2^20Hertz