On 14-Apr-17 08:11, L. Curtis Boyle wrote: > Back in the 1980's there were both Z80 cards (from multiple vendors), > and 68008 cards (from MicroRGS, or something like that (don't have > ads handy). > > Sent from my iPhone > Excellent.... That would mean that an Aux Processor could take Control of the Bus, and Write Data into the CoCo's Memory... MarkO