<div class="gmail_quote">On Sat, Dec 18, 2010 at 4:53 PM, Joep L. Blom <<a href="mailto:jlblom@neuroweave.nl">jlblom@neuroweave.nl</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> That was on the Electrologica X1 and later the X8. They were machines build by a small Dutch company which later is sold to Philips (then it was called Philips Electrologica). Several were sold in the Netherlands but I don't know if they were sold abroad. They were rather advanced machines build with the input from people like Edzge Dijkstra (who was one of the developers of ALGOL) and others. I worked on it from 1965 to 1969. I cannot remember the amount of memory. I know the X1 had a low memory count. I used that one for making graphic plots (curves of firing frequencies of neurons) where we used a curve-fitting routine to match a theoretical models. It took approx.20 minutes for 1 plot so I interspersed the program I did it with with funny texts for the operators after several plots (to get preference in processing!); it worked. On the X8 I programmed more elaborate statistics and theoretical models but that machine was many times faster that the X1. You can find information on these computers here:> <a href="http://www.science.uva.nl/faculteit/museum/X1.html" target="_blank">http://www.science.uva.nl/faculteit/museum/X1.html</a> Joep</blockquote></div> You have worked on many machines, great. -- Regards, Parshwa Murdia