3 ms·
AFAIK (and I don't know much), c is also a huge limiting factor in processor design, since high-enough clock speeds put a hard cap on how far a signal can trave
by fredley 9y ago
AFAIK (and I don't know much), c is also a huge limiting factor in processor design, since high-enough clock speeds put a hard cap on how far a signal can travel between ticks, even assuming perfect components. Agree that c is too low and we should attempt to simulate a universe in which it is higher and go live there instead.
- pjc50 9y ago(source: used to write chip design software) The timing calculation approximation we used had no term for 'c' in it at all. The simple approximation is just an RC timing curve: total capacitance of the wire and gates that you need to change, through the on-resistance of the driving FET. The more complex version treats each wire as a transmission line and incorporates its inductance, but ultimately for electrical signals travelling in a medium near a ground the important factor is the dielectric, not the speed of light. The other massive limiting factor in processor design is heat conduction.