In response to the questioner's concern, I just created a tag for [trs-80](https://retrocomputing.stackexchange.com/questions/tagged/trs-80 "show questions tagged 'trs-80'"). (See [Did Radio Shack initially attempt to get a monopoly on commercial software for the TRS-80 Model I?](https://retrocomputing.stackexchange.com/questions/5781/did-radio-shack-initially-attempt-to-get-a-monopoly-on-commercial-software-for-t)) He specifically mentioned in a comment that he had lacked the privilege to create a [trs-80-model-i](https://retrocomputing.stackexchange.com/questions/tagged/trs-80-model-i "show questions tagged 'trs-80-model-i'") tag. The tag he was suggesting paralleled a pre-existing tag, [trs-80-model-iii](https://retrocomputing.stackexchange.com/questions/tagged/trs-80-model-iii "show questions tagged 'trs-80-model-iii'"). However, I saw that the Model III tag has only ever been used once. I also noted that the TRS-80 Color Computer already has a separate tag, [color-computer](https://retrocomputing.stackexchange.com/questions/tagged/color-computer "show questions tagged 'color-computer'"), which is used for many questions.

For my new tag's description, I wrote that it was to be inclusive of the z80-based TRS-80 computers, the Model I, II, III, and 4. The other TRS-80 computers (Color Computer, Pocket Computer, Model 100, Model 2000) all have very separate designs and IMO should use some other tag.

I suggest that the pre-existing [trs-80-model-iii](https://retrocomputing.stackexchange.com/questions/tagged/trs-80-model-iii "show questions tagged 'trs-80-model-iii'") tag be either retired or made into a synonym, and its question be edited to include the new tag.

/add  

After a little more research, I see that the Model II, while a z80-machine, was an outlier in the Model I, III, and 4 family. It was designed for the business market and had a built-in 8" floppy drive. It had its own business-centric descendents, including the Model 12, Model 16, Model 16B, and Tandy 6000. From Model 16-up, the machines added a 68000 cpu and could switch to run Unix. So I probably should remove the Model II from the description for [trs-80](https://retrocomputing.stackexchange.com/questions/tagged/trs-80 "show questions tagged 'trs-80'"), but will wait for feedback.