Microsoft-Paul Allen

> long before the Color Graphics Adapters were > available, about six months after launch, and the CGAs were only > produced in response to the completely unanticipated demand for the > PC.

Are you certain? My then boss* and I went to a Computerland store in Denver** on August 12, 1981, to pick up a PC that he had preordered***. My (possibly faulty) recollection was that they had both MDA and CGA adapters on that day, though they might not have had the CGA monitor in stock. Our purchase included a PC configured with keyboard, 64KB of RAM, a memory expansion board with another 64KB of RAM, a floppy controller, one 160K floppy drive, a serial card, an MDA card, an MDA monitor, and (not installed) a CGA card, and IBM DOS 1.0. We used the CGA card with an NEC RGB monitor, and not all of the colors were correct. The NEC monitor wasn't designed for the PC, and I don't think it had an intensity signal at all, so we only got eight colors rather than 16. IIRC, yellow was brown, or perhaps vice versa, due to an oddity of how IBM encoded a particular combination of the RGBI signals. The software and documentation included CGA support from day one, so it definitely was not an afterthought. In addition to IBM DOS 1.0, we very quickly got a prerelease version of QNX****, and that was the first time I actually used a Unix-like operating system.