My favourite computer: an old Mac
This Macintosh Classic II wasn't the best computer of its day, it wasn't even the best Mac available at the time, but 30 years on and as its second owner it has unexpectedly become one of my favourite computers.
The Classic II sits on a desk in the corner of my living room, just beside my main front window. It takes up a small amount of space, is unassuming, and always looks happy, ready to serve me whenever I call on it.
There's definitely something to be said about using an old, disconnected computer for certain tasks. Of course, this imposes a lot of limits that may end up frustrating and annoying, but it may also be calming.