On 8/20/06, John W. Kennedy <jwkenne / attglobal.net> wrote: > M. Edward (Ed) Borasky wrote: > > I once had a boss who claimed to have worked on an IBM 1620. I think he > > was trying to impress us as being a "real programmer just like us." The > > lab where I worked on a 1620 got rid of it in 1964 ... I'm guessing he > > was in junior high school then. :) > > The 1620 was still a state-of-the-art product in 1964, and was IBM's > only desk-sized machine of the era. If your lab dumped one, it was not > for obsolescence; its niche successor, the 1130, was still in the future > -- and the 1130 was not compatible at all with the 1620, so upgrades > were slow and cautious. (Many 1620s were instead eventually upgraded to > S/360-30 mainframes, which offered a 1620-compatibility option.) Actually, the 1620 was the first computer I programmed, and that was in 1970-71, my first year in college. Back then there were a few computers or time-sharing terminals in some high schools, but in high school, I was more interested in electronic music and synthesizers than in computers. The University had a couple of IBM/360 machines by then, but the 1620 was owned by the Engineering school and all freshman engineers had to take a semester course (C.E. 101 or something like that) which was half a semester of drafting/engineering graphics with T-squares, triangles, and french-curves, and half a semester of Fortran II programming on the 1620. There was also an old Analog computer in the room next to the 1620. I've got fond memories of the 1620, some buddies and I even came up with a new language called SCRUBOL (Scientifically Compatible Relatively Unusual Basic Operating Language) and wrote a compiler for it. It had a disk drive, and a calcomp plotter which was on the paper tape I/O port. You plotted by using the punch paper tape statement in Fortran, Some other guys took the fast paper tape reader which had been replaced by the calcomp plotter and interfaced it to a PDP-8. They had to figure out how to slow it down to get the PDP-8 to read it reliably. But then I guess I'm not a real programmer. -- Rick DeNatale My blog on Ruby http://talklikeaduck.denhaven2.com/ I