Smokeless Joe Posted June 17, 2022 Share Posted June 17, 2022 I just got a sweet TRS-80 Model 1, but it has Level I BASIC, so it's not compatible with the MIRE and MISE I already have. What's the recommended way to upgrade the Model 1 from Level I to Level II? Does anyone still sell an upgrade? Thanks! Quote Link to comment Share on other sites More sharing options...
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