On 16 Sep 98 at 0:14, Tony Duell wrote:
> One interesting 'feature' of the 800K Mac drive (and I suspect the 400K
> drive is similar) is that there's a pin on the connector (pin 9, I think)
> which will trigger the eject mechanism if clamped to ground. It's not
> used on the Mac AFAIK. Maybe it was used on the Lisa.
"Phil Beesley" <PB14_at_leicester.ac.uk> wrote:
> I suspect that the feature is used by the Apple II family. External
> 3.5" drives for the II have an eject switch.
Furthermore, Apple implemented the switch such that it doesn't actually
force the drive to eject the disk. If the computer configures the drive
appropriately, the switch will simply generate a request to software.
For instance, if you install an external Apple 3.5 drive or SuperDrive
(FDHD) on a Macintosh IIcx or IIci, pressing the button on the drive
causes the driver to post an event that is equivalent to hitting
Command-Shift-2 on the keyboard.
The Apple IIgs software might also use the button in this way; I haven't
checked.
Received on Wed Sep 16 1998 - 14:33:37 BST