360/50 microcode listing

Ethan Dicks ethan.dicks at gmail.com
Thu May 7 15:14:55 CDT 2015

On Thu, May 7, 2015 at 3:57 PM, Chuck Guzis <cclist at sydex.com> wrote:
> On 05/07/2015 12:34 PM, Lawrence Wilkinson wrote:
>> Henk Stegeman has done this: http://www.ibmsystem3.nl/System360/index.html
> So, from this list, only one working--and it's a 4331, not a S/360 box.
> That doesn't surprise me at all.

We had a 4331 at Software Results in the 1980s, sharing the room with
a couple of VAX-11/750s and some PDP-11s, all speaking HASP, 3780, and
some SNA (through COMBOARDs on the DEC side).  ISTR it wasn't too hard
of a machine to keep going, and not really more of a footprint than an


More information about the cctech mailing list