OK, that does look like the official Mini-UNIX release from
Bell Labs in 1979. I'd have to look at the files in the .tap file
to verify this.

Note the name Mini-UNIX was also used by Andrew Tanenbaum
for the system he developed at Vrije Universiteit in Amsterdam
much later in 1987 independent of the Mini-UNIX that I developed
at Bell Labs in the mid 1970's. See here:


On 2/22/2020 8:46 AM, Clem Cole wrote:
.tap files are simh format files  and 'look like a mag-tape' to the simulated tape hardware.
There are tools that will convert to/from Bob's Simulator format as needed.

On Sat, Feb 22, 2020 at 6:08 AM Ed Bradford <egbegb2@gmail.com> wrote:
How do I open a .tap file in the .zip file for mini-unix?
Also, do you have a date for this snapshot. A date would be
very useful for "product comparisons" at that date.


On Sat, Feb 22, 2020 at 4:43 AM Al Kossow <aek@bitsavers.org> wrote:
On 2/21/20 10:34 AM, Heinz Lycklama wrote:

> I believe that the source code for this system (Mini-UNIX) was
> provided to some universities by the UNIX Support group at
> Bell Labs. WE did not license this.

tape image at

Advice is judged by results, not by intentions.