Kent A. Reed wrote: > Oh, man. Check out that control rack, especially the reel-to-reel tape > (punched paper?) reader at the bottom of the stack. Reminds me of my > early minicomputer days. I get misty-eyed thinking about those days but > boy am I glad we've made some progress since! > Hell, that's nothing! Have you seen a GE Mark Century, or a GE tape-NC control? I got the motion control hardware out of a GE tape NC control, and looked at, but ran away screaming, from the control itself. It was about 500 paper-phenolic one-sided PC boards with a couple germanium transistors and a bunch of diodes on each board. That was the basic XY positioning control, they added another few hundred boards to do linear interpolation, then a few hundred more to do circular interp. Now, THOSE controls were monsters. I can't IMAGINE how you kept one of those things working. No computer at all, no way to run "diagnostics", you had to program a path and see if the control executed what you told it to. If not, be ready to hit E-stop.
Jon ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
