I've always had an interest in the computers of olde, and recently I found a TRS-80 in a nearby building. Does anyone have any experience with it? It looks like the Model III from Wikipedia (in my memory), but I think it has 64k of RAM, so I figured it might be a Model 4. What is a 'cassette drive' in this context (I know someone will feel old)? The model III has 2, and the model 4 has floppy drives, which I can deal with.