Tandy Radio Shack - TRS-80 Model III - Various (TOSEC-v2006-06-07)

"As a follow-on to the Model I, in July 1980 Tandy released the Model III, a more integrated and much improved system. The improvements of the Model III included built-in lower case, a better keyboard, and a faster (2.03 MHz) Z-80 processor. With the introduction of the Model III, Model I production was eventually discontinued as the Model I systems did not comply with new FCC regulations