The Motorola 6809E was an advanced processor for the time, but was correspondingly more expensive than other, more popular, microprocessors. Thus, despite the similar name, the new machine is not compatible with software made for the old TRS-80.
12.4 Delmar System IV/Peripheral Technology PT68K-4ĭespite bearing the TRS-80 name, the 'Color Computer' is a radical departure from the earlier TRS-80 in particular it has a Motorola 6809E processor, rather than the TRS-80's Zilog Z80.7.2.1 Alphanumeric/Semigraphics display.7 Hardware design and integrated circuits.3 Differences from earlier TRS-80 models.