Lisa floppy problems

--- Eric Smith wrote: Marion.Bates(a)Dartmouth.EDU (Marion Bates) wrote: No, they are in fact identical, and have auto-eject. The eject when the white "power" button on the Lisa is pressed is done by software; the button doesn't really have anything to do with the power supply. Eric --- end of quote --- I asked David Craig about this, and here's what he had to say: "Concerning your recent question about the differences between the Mac and Lisa 400k drives as pertaining to auto eject at machine shutdown, my understanding is the Lisa drive has extra circuitry to detect when its power is turned off and it then auto ejects the floppy. The Mac drive does not have this extra circuitry and therefore does not auto eject a floppy by itself. The Mac floppy ejection is controlled by the system software. See Sun's Lisa repair manual which talks about this feature. FWIW, the Lisa drive being smarter does not suprise me since the Lisa hardware philosophy was to have specific components handle specific tasks. That's why the Lisa twiggy drives were smart and did stuff like formatting whereas the Mac handles everything about the disk. The Lisa's keyboard was also smart and had its own chip to control it -- COPS, control oriented processing system." -- MB