The computers that I write about on this blog are mostly machines that I owned when I was younger. That changes today. Over the last few months, I’ve been slowly taking free time to work on a machine that I never owned (or could have; they weren’t sold outside the UK), an Acorn Archimedes A3020. My Acorn Archimedes A3020 What’s special about this computer to me is its historical relevance. It runs on one of the first ARM RISC processors. More specifically, it runs an ARM 250, a system-on-chip that includes the 32-bit ARM3 core, along with memory and I/O controllers.