Re: Apple model history?

[Roy and/or Janet Miller <millers@inetnebr.com>]

Paul Schlyter wrote:
>  
> There was a freeware CCP replacement for CP/M though, ZCPR, which
> used these user areas to implement what looked like subdirectories.
> 

The "Zipper" was a valuable improvement over the CCP (for those who
don't know CP/M but do know MS-DOS, CCP is similar to command.com), but
I didn't know that it was freeware - is this a recent reclassification?
There was also a "Zipper 3", like CP/M 3.0, which had memory management
like SOS/ProDOS, did it have a hierarchical filing system?

Roy Miller