The Mystery of the Missing 253

When Timex released its Technical Manual for the TS2068, we learned how to add memory to and switch between its three internal memory banks. 

This was wonderful stuff, and it’s given us many excellent TS2068 products long after the “profane world” thought that the Timex computer was dead. 

Still, if we think back, we may remember that Timex originally promised 256 banks. In addition to the Home, Dock, and EXROM banks (which we we will call the “standard banks”), there would also have been the provision for special enhancements that we’ll refer to as “expansion banks”. 

In this series, we will look at how those extra banks would have worked.