Nope. The HD20 required the HFS file system, which is the reason it
could not be used on a 128K. The HD20 came with System 2.1/Finder 5.0
in September 1985, which was the first HFS aware system, and the HD20
INIT was placed in the system folder to load HFS into the 512Ks RAM at
startup.

On Jan 7, 10:39 am, Doug McNutt <[email protected]> wrote:
> At 10:06 -0800 1/7/10, Pete Junger wrote:
>
> I'm pretty sure the flat file system predated HFS and any hierarchical folder 
> displays were emulated by Finder software as it was until OS 4 or so.
>
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