True random numbers in computing does not exist and never will. Computers are deterministic, in that if you repeat the same experience under the same environment, the same result will be achieved.
What you get with computers are pseudo-random numbers, mostly depending on current circumstances: date, time, other variables like memory being used, network traffic at the moment, etc.
For example, some online poker sites, to guarantee to some extent the randomness of their dealt hands, had to install specific hardware that takes the ambient noise and generates random numbers based on that (not only that, but it's a major factor).
So, to have pseudo-random numbers that approximate to true randomness, you'll need to take outside factors into account.
