IBM 4331 Mainframe

On Mon, May 1, 2017 at 12:38 AM, Guy Sotomayor Jr via cctalk <cctalk at classiccmp.org> wrote: Very cool. We had a 4331 at Software Results from around 1984 through about 1988. We got it because we needed to configure our own HASP, 3780, and SNA lines for testing our products and reproducing customer issues (and previous attempts to rent time on outside machines took too long to get configured on demand, etc). Outside of pushing test data around, we also used it for designing new products with CBDS2 (Circuit Board Design System 2). We had a huge (over 20") Tektronix storage tube for displaying parts of the schematics and layout. ISTR we went with the 4331 because it was the smallest machine that could give us the bisync and SNA lines we needed for its primary use. It was vast overkill for the workload we had. It took up as much floorspace as two of our VAX systems that supported dozens of users, but was a thing unto itself. Nice setup! -ethan