I’d be interested. Built some PC’s back in the early 90’s, thought about programming but took classes on networking instead. It’d be fun to do.
This processor has internal RAM, EPROM and flash memory. It can easily communicate with a PC using USB. It's a great chip for beginners as it's so cheap and can do so much.
I usually get them 100 at a time and they cost about 1.25 each. I buy from Mouser.com but lots of people stock them.
I use these little processors to build hobby type fun projects. But they can be called on to do serious work as well. It's basically a whole computer for a buck and a quarter.
The compiler is free and of excellent quality, as is the free IDE.