Ok, I just thought of something. Something that beats it all. A piece of glass with uranium oxide diffused in it and check this, in outer space, with sunlight shining on it at all time. Blam, no startup time. Always on, for billions of years. It fluoresces as UV photons hit the uranium oxide molecules. Faster than the Amiga, PC, Mac, Ti calc and my pic18f. Never needs a reset. Top that.