[Coco] Program to manipulate .DSK images

[Allen Huffman]

> On Jan 13, 2015, at 9:25 PM, Zippster <zippster278 at gmail.com> wrote:
> 
> Ok, so it sounds like you can do an OS9 command line interface at least
> with a serial console.

OS-9 was as easy as forking a new shell with I/O redirected to the serial device:

OS9: shell <>>>/t1 &

There was “tsmon” which was a time sharing monitor program that would monitor a device for ENTER and then fork “login” and give a shell prompt, too, if I am recalling the proper version of OS-9 correctly.

Third party replacements were much fancier. OS9 L2 BBS was the first one I used, then later, StG Net which was VERY internet like — message areas being things like COMP/OS/OS9 and such, and users were username at system. It was very cool.

		— Allen