release dates of early microcomputer operating systems, incl. Intel ISIS

[Nigel Williams]

On Tue, Sep 15, 2015 at 5:47 PM, Eric Smith <spacewar at gmail.com> wrote:
> I've been searching for introduction dates of early microcomputer
> operating systems

Are you including or excluding systems like the APL-based Intel 8008 MCM/70?

https://en.wikipedia.org/wiki/MCM/70

circa 1974 - I guess Zbigniew's book might provide a precise introductory date.