Hi, I have had for many years a large core, and while I don't really want to part with it, I also see what little pieces of core sell for on ebay.... I was told when given this about 15 years ago that it was from a Burroughs mainframe which was installed at the Cadburys head office in New Zealand and that they had paid GBP 20,000 for it in 1960. I have been unable to find out if this was correct however. Does anyone on the list know anything about it ? pictures at http://www.flickr.com/photos/8788341 at N05/?saved=1 There are 921600 cores in the array, which is made up of 48x48 cores, 4 to a layer and 100 layers. _________________________________ Regards, Gavin Melville Senior Engineer Acclipse Electronic Ltd