Message: 4 Date: Thu, 5 Sep 2019 10:03:54 -0400 From: "Craig M." <cmook1968 at gmail.com> To: cctalk at classiccmp.org Subject: ROLM - Dat general 1602 - AN/UYK-19 computers. Message-ID: < CAD1aQJ5FnQDS7i+iLeh-+zBSBrzaqV9-f61Q76XgEbz=fSN+nw at mail.gmail.com> Content-Type: text/plain; charset="UTF-8" Good Morning, Have you ever come across a document called the "Rolm I/O Designers Guide?" I am working with some developers trying to figure out the data words and how they work on a Navy AN/UYK-19 computer. I have some sticktime on the Eclipse machines. In going to boot camp getting my MV4000/DC I ran into some interesting characters. One was with DG on military sales, was visiting Groton? or another base where a test was being conducted. The computer was suspended on wires in a hangar and, while running, was subjected to simultaneous blows from heavy pendulums on either side. The noise was teriffic and my friend asked the same question, why on earth, to which the cryptic reply was two words: Depth Charges. Probably your USAF machine, corn field kept though it was, was designed for service in another kind of silo, the missile kind. Those would be projected to survive near-direct hits from megaton thermonuclear weapons. Not to mention that no air force property is immune from attack by all sorts of ordinance, nuclear or otherwise. Best, Jeff Another note, saw an old query on the "Rolm Computers: 1602, 1602A, 1602B, 1666, MSExx (was Data General Nova Star Trek)" thread about breaking down the military system designations. This website may help if you never got an earlier answer: https://dsm.forecastinternational.com/wordpress/2015/05/27/whats-in-a-name-… Thank you! Craig Mook