The first computer I owned was an Amstrad PCW8512.
When I bought it they weren’t called PCs, the phrase personal computer was not used, the Amstrad was sold as a Word Processor. I’ve been reading the Wikipedia article about it and it’s been jogging my memory.
Mine had the “relatively obscure 3-inch ‘compact floppy’ format” discs but they didn’t seem unusual to me at the time because everyone I knew used them.
The worst thing about the PCW was the awful dot matrix printer. At the time I owned it I took very little technical interest in computers and I didn’t even know it was a dot matrix printer, but I knew it was bad. It produced very light type which I didn’t like. Looking back maybe I needed to replace the ribbon.
The software was Locoscript and this was stored on one of the three inch discs.
I typed a huge amount of material on that computer. I had it when I lived in Northern Ireland and was doing radio stories for the BBC. All the scripts for the stories were typed on that computer.
I think the first computer you own is quite defining. You want the things that it can do forever.
Before the Amstrad PCW I used a typewriter. The leap to being able to edit the text as I typed was fabulous. It was and still is a form of magic.