simulating randomness

Question

I'm just curious...

How do you simulate randomness? How is it done in modern OS (Windows, Linux, etc.)?

Edit: Okay, NOT JUST GENERATING RANDOM NUMBER, which can be just done with calling rand() functions in most high level programming languages.

But, I'm more concerned with how it is actually done in modern operating systems.

Answer 1

Please see:

http://stackoverflow.com/questions/584566/pseudo-random-number-generator

http://stackoverflow.com/questions/37702/true-random-number-generator

http://stackoverflow.com/questions/167735/fast-pseudo-random-number-generator-for-procedural-content

http://stackoverflow.com/questions/693880

http://stackoverflow.com/questions/44408/how-do-you-generate-a-random-number-in-c

http://stackoverflow.com/questions/369636/seeding-a-random-number-generator-in-net

http://stackoverflow.com/questions/403572/how-to-get-random-double-value-out-of-random-byte-array-values

http://stackoverflow.com/questions/167735/fast-pseudo-random-number-generator-for-procedural-content

etc...