Posts tagged with “Micro Control Systems”


Probably the most popular of the TRS‑80 Model I and III color add-ons was the CHROMAtrs, introduced by South Shore Computer Concepts starting in 1982. It was available in several configurations:

a kit without case or power supply cost $99.00

a kit with case and power supply cost $129.00

a fully-assembled and tested unit cost $169.00

Each CHROMAtrs unit supported both the Model I or Model III and would work with either computer using the proper cable.