Theos

[Mark Davidson]

Yep, and it's still available for PC compatibles.  It's a multi-user 
system (with little or no support for graphics), and has a multi-user 
BASIC, as well as C compiler and assembler.

I actually owned a version of this for a while... biggest problem with 
the current version is that 1) it's not cheap (several hundred dollars 
for the OS and development kit), and 2) it's hardware-protected via a 
dongle (or it was when I used it).

On the other hand, it's a complete multi-user OS that comes on just a 
few floppies and has very nice documentation (several very thick 
books).

I'm not sure how you can recreate the install system from an installed 
version.

Mark

On Apr 23, 2005, at 10:20 AM, James Fogg wrote:

> Anybody ever hear of an OS called Theos that ran on the original IBM 
> PC?
> Said to be *nix/CPM-ish but is neither? A friend has an old 5150 with
> this installed on the HD. He wants to copy it off and preserve it.
>