Is there a finite limit to how fast computers can get?

Question

Is there a finite limit to how fast computers can get?

Answer 1

computing is a means to get an answer, and todays computer does things very differently from the days of Eniac.  so engineers can redefine how a "computation" is achieved and the next (speedier) generation may use technique that is uncommon by todays practice. so over-all there is probably never going to be a limit to speed of results produced.  for example super computers now rely on doing many simultaneous actions rather than one linear lock-step of sequences.

however, for a given technology, there are limits. the speed of electricity in the wiring is about 1 foot per nano-second. A gigaflop computer must have its component parts (transistors) packed very closely together to avoid loss of synchronization. tight packing generates a lot of heat in a small space, so lowered voltages and cooling devices have become necessary.

Answer 2

Yes. 300 million meters per second. The "speed" of an electron in free space.