Monday, May 30, 2016

PBJ C-C Bus: A 3rd party expansion bus for the Radio Shack Color Computer.

Today I thought I would share some photos of a unique third party expansion bus and related manuals that acquired some 20 years ago.

The photos are of the C-C Bus produced by PBJ Inc of New Jersey, and this particular unit was sold by Acorn Computers of Wisconsin.

I have never connected this expansion bus to any of my CoCo's, so it's state is unknown. I will post updates  as I continue with my explorations in retro-computing and get my CoCo systems back up and running.

Here is a link to an article on various 3rd party expansion buses for the Radio Shack Color Computer:

C-C Bus top view

C-C Bus ID Label

C-C Bus description from the Users Manual

Saturday, May 28, 2016

64KB Radio Shack Color Computer with white full case

OK, so it's been a while since I have posted to this blog, but I am finally making the time to not only post to this blog, but also get back in to the retro-computing hobby.

Today I started sorting out my collection of Radio Shack Color Computers, and not only did I rediscover the TDP Electronics System 100 I posted about a few posts back, but I also found two white full case Color Computers.

These are 64KB systems, and unlike the TDP System 100 the case style is the same as the original battleship gray Color Computer 1

Here's is an image of the first system I came across:

And here is an image of the second white CoCo. Note the LED next to the label:

Eventually I will power these up and play around with them, but the first order of business is to get a CoCo 3 system set up, and start archiving my software.

Feel free to comment about this or any posts on this blog, and also let me know if you have any suggestions for sites that should be in the sidebar.