Unity Pro.Random Number Generator

Hi,Does anybody know if there are any routines in unity pro that produce random numbers like the routine rand() in C ?

I would develop logic that generates a number as a function of time.

BTW- I remember from advanced programming courses in collge that a computer cannot generate a truely random number. It has to be based on somethig, therefore does fit fit the definition of random. 'If one of you could develop code that generated a truely random number, you will be a millonaire.' the proffesor stated.
I think I will get to work on it immediately. just kidding.