Is quite worth to read this : http://en.wikipedia.org/wiki/Clock_signal http://en.wikipedia.org/wiki/Clock_signal . You don't need a special core for this, the

Is quite worth to read this : http://en.wikipedia.org/wiki/Clock_signal http://en.wikipedia.org/wiki/Clock_signal . You don't need a special core for this, the whole processor is a giant clock distribution platform to different areas (cores/regions). Even the brain has some neurons linked together that produces a kind of "clock", that is, a pulse that is circulary propagated via the participant neurons. For example the alpha wave. However, is not sure if this is linked to how we perceive time intervals.