Well, the Atari ST booted in about one second, from black screen to moving a mouse around. A lot of that time was waiting for a floppy disk boot sector read to time out (so if you had a formatted floppy in the drive it'd spin up, quickly read a dud boot sector, and continue the boot process of the ROM-based OS rather than timing out).
I suppose if you were gonzo about it you could format the first track with sectors all numbered zero, and eliminate rotational latency. You'd save 80 ms (on average) that way.
I suppose if you were gonzo about it you could format the first track with sectors all numbered zero, and eliminate rotational latency. You'd save 80 ms (on average) that way.
Didn't seem worthwhile at the time :-)