Randomness, does it exist?

Does true randomness exist?
I mean, a random number generator on the computer uses some algorithm, it's not truely random.

>>10,12
Without theory, there is no such thing as practice. Without a proper understanding of the theory behind randomness and random number generation, it's impossible to use random number generators properly.
Considering the fact that all engineers are expected to do is follow the manual, you'd think they'd realise that, and you'd think they'd respect their betters.