True Randomness

Is there any hope for strong portable randomness in the future? There might be. All that’s needed is a physical source of unpredictable numbers. A thermal noise or radioactive decay source and a fast, free-running oscillator would do the trick directly. This is a trivial amount of hardware and could easily be included as a standard part of a computer system’s architecture… All that’s needed is the common perception among computer vendors that this small additional hardware and the software to access it is necessary and useful.

~ Eastlake, Crocker and Schiller RFC 4086 Randomness Recommendations for Security, IETF (Internet Engineering Task Force) Network Working Group, 1994-12

Intel’s Ivy Bridge processors now contain random number generating hardware.