On 07/08/2014 07:11 PM, John R Pierce wrote: > On 7/8/2014 2:07 PM, Robert Moskowitz wrote: >> The invention of the 8" diskette as the boot media for the 360 > 370, not 360. the 360's had microcode in "ROM", one of the innovations > of the System/370 was soft loaded microcode. Yeah. I thought about it a bit and did not feel right with the timeline. It would have to have been just before the 370. Makes more sense it was the 370. I ran with the BUNCH back then. IBM stuff was to be generally ignored...