The system bus has been used for quite a few hardware add ons. DVI, and some
ram /rom expansion devices.The most elaborate was the Booster PAK which changes
the machine quite a bit.
There are two on ebay. Just search for "Purple Computing"
Kurt
On Tuesday, June 2, 2015 9:27 AM, Hiraghm <[email protected]> wrote:
Okay, so the system bus is used to connect to the DVI drive/video
expansion, but what are its total capabilities?
In an earlier message I wished for a cpu/ram upgrade for the M100. On
reading about the extRAM in Portable 100 issue November 1990 (page 17),
I began to wonder if one of you hardware types could build a very small
cpu/ram upgrade board that "takes over" for the CPU over the system bus.
Maybe this is how QUAD adds the banks of RAM, I don't know. That's why
I'm asking, because I don't know.
Not only would such a hardware upgrade speed up and expand the
capability of the M100 (would probably require a customized ROM via
REX), but it would make CP/M or even a custom FreeDOS (except FreeDOS is
32 bit :( ) possible.
