CoCo's *are* real... (was: OT: PC Motherboard with a vacuum tube

As far as I recollect it was the same scheme as the apple graphics. IBM software worked ok as long as it wasn't made as direct hardware addressing of the IBM video. The "upgrade" video card with RAM add-on gave the MBC-5xx sereis actual hardware CGA for a mere $275 (what a deal huh, and that was with bare DRAM sockets) -> -----Original Message----- -> From: cctalk-admin(a)classiccmp.org [mailto:cctalk-admin@classiccmp.org]On -> Behalf Of Sellam Ismail -> Sent: Friday, September 06, 2002 12:45 PM -> To: cctalk(a)classiccmp.org -> Subject: RE: CoCo's *are* real... (was: OT: PC Motherboard with a vacuum -> tube -> -> -> On Fri, 6 Sep 2002, Russ Blakeman wrote: -> -> > Sanyo had a Ctrl key but NO Alt, u nderrated power supply, -> bitmap (Apple -> > type) video on a supposed IBM compat, and other really pain in the rump -> -> So this has always intrigued me about the Sanyo. Are you saying that the -> graphics screen on the MBC-55x was mapped in an interlaced fashion? Did -> it have the same addressing? -> -> Sellam Ismail Vintage -> Computer Festival -> ----------------------------------------------------------------- -> ------------- -> International Man of Intrigue and Danger -> http://www.vintage.org -> -> * Old computing resources for business and academia at -> www.VintageTech.com * ->