Re: Apple UniDisk 3.5 vs. Apple 3.5

[John Le Febvre <John@klatch.demon.co.uk>]

In article: <5btikr$8la$1@europa.frii.com>  shack@deimos.frii.com (Randy Shackelford) writes:
> OK I think it's time for the Canonical List o' External Floppies (tm):
> 
> 1. beige, Apple logo not in color, notch at right end of disk slot so you 
>    can jam the disk all the way in -> 400K external for Mac, incompatible 
>    with IIs

Works on II's equipped with a UDC

> 2. beige, colored Apple logo, no eject button, no daisychain port on the
>    back -> 800K Mac external, incompatible with IIs

Works on II's equipped with a UDC

> 3. white, eject button -> unidisk 3.5, compatible with 32K ROM //c and up,
>    //e with "Apple 3.5 floppy disk controller card" AKA the LIRON card,
>    //e with "Apple II 3.5 disk controller card" AKA superdrive card, IIgs
>    floppy port, IIgs with superdrive card, IIgs with LIRON card (1 MHz only)

Also II's equipped with a UDC

> 4. grey, red in use light -> Apple 800K 3.5, compatible with Macs equipped
>    with an external floppy port from the 512 Enhanced up, //c plus, IIgs
>    floppy port, IIgs with superdrive card, //e with superdrive card

Also II's equipped with a UDC

> 5. grey, amber in use light -> external FDHD, compatible with //c plus
>    (800K only), IIgs floppy port (800K only) //e and IIgs with superdrive
>    card (800K and 1.44 mb)

Also II's equipped with a UDC (800K only)


This may be restricted to //e and IIgs only.  I have used the UDC card
in both machines with a SuperDrive (800K).
-- 
John.
john@klatch.demon.co.uk