Both Model 16 and 12 were bad sellers due to lack of software that could use the new functionality.
This changed in early 1983, when Xenis for the Model 16 was released and the machine could be used as a multiuser server.
In July 1983 the 16B was released like this one. It houses a faster Motorola CPU (8 MHz) and more memory.
The Model 16B eventually was succeeded by the Tandy 6000.