Avalon sold math and especially FFT/image/convolution/deconvultuionco-processors in the late 80's and 90's. Used in (among other things I'm sure) medical imaging back-projectors. "Back-projector" seems to mean something different today in google searches... back in the 80's and 90's we called the processing system that takes raw data from CAT scanners and turns it into a image, "convolvers" and "back projectors". For a while in the early 90's, the same generation Avalon co-processor was available in Unibus, Q-bus, and Turbochannel all at the same time. I remember I could get a Alpha processor on a Unibus card at one point! For a while (again mid-90's?), I think one company that sold Avalon boards used the name "teraflop.com". e.g. http://web.archive.org/web/19970116193017/http://teraflop.com/acs/acs.html Avalon corporate history also at archive.org: http://web.archive.org/web/19970116193719/http://teraflop.com/acs/html/hist… This (from the mid-90's) discusses some of the history of Avalon from a typical number-cruncher's perspective: http://www.taborcommunications.com/archives/1530.html Tim.