My first store-bought personal computer was a Radio Shack TRS-80 Model 1. Of course, the TRS-80 series was nicknamed Trash-80 but they were pretty good machines for the time.
It ran both a proprietary OS called TRS-DOS as well as the optional CP/M.
There were some decent apps like the Scripsit word processor and Visicalc for spreadsheets.
It was a very powerful feeling to change a variable in a spreadsheet and watch the changes ripple through an entire sheet.
Visitors to GreatLakesGeek.com are asked to tell what their first PC was - a TRS-80? Apple II? Commodore 64? TI? Or did you not get a PC till the IBM PC came out?
Tell us about your first - Vote here.