Sorry for being confusing.. I have been digging in and refreshing my memories of that first and second wave of small computers in the early 1980s. It's a bit c

Sorry for being confusing.. I have been digging in and refreshing my memories of that first and second wave of small computers in the early 1980s. It's a bit churlish to knock the IBM PC, the box that launched a thousand clones. The computer came with BIOS listings and schematics of the motherboard! It's just that, as built, that first incarnation of the IBM PC was a kludge. A brilliant kludge, but in truth a hack designed to be replaced in a year or two. At the time, there were very low expectations regarding "open" versus "closed" systems. At least in my group of computer ah, enthusiasts. Rather than an S-100 passive backplane, where you can swap out all modules, you had storage and video display in one smaller box. With the printer, a RAM card, and the floppy controller, you had two or three slots... High end video display terminals in 1980 could be expanded by installing big cards into a rack behind the CRT display. Then they could run with all processing locally!