That refurbed HP would be a great computer for any modern radio. Don't need a lot of processor power even if you run lots of apps at the same time. You definitely to want to run more than one monitor. One of them will probably be a 4k. You can buy a cheap video card if you have to.
Lots, and lots, of free windows software for ham radio.
Lots, and lots, of free windows software for ham radio.
...runna pile-up on 6m SSB