TRS80, other than model 1

Peter Cetinski pete at
Sat Jun 13 15:35:46 CDT 2015

The double cassette ports.

> On Jun 13, 2015, at 4:08 PM, tony duell <ard at> wrote:
> Trivia question : What feature was present on all disk based M1s (in fact any M1 with an expansion
> interface) but not on any M3 or M4 machines?

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