[TUHS] Government-Issue UNIX?

[Jon Forrest via TUHS]

On 10/11/25 12:44 PM, Stuff Received via TUHS wrote:
> On 2025-10-09 01:28, Tom Perrine via TUHS wrote:
>> KSOS - for PDP-11 originally developed by Ford Aerospace, and then 
>> extended
>> at Logicon. It did have a supervisor rmode UNIX system call compatible
>> system. Later there was also a userland library that implemented 
>> something
>> that mostly matched the UNIX system calls. It had no kernel code in 
>> common
>> with UNIX. It was written in Modula.
> 
> Interesing -- what compilers did you use?

What I remember is that it used Modula 2 from a group at the
Univ. of York in the UK. I don't know for sure that this is
the version of Modula 2 that eventually was used for the
implementation but I think it was.

Jon