My father was involved in the aerospace industry as an electrical engineer (Space Shuttle, Minuteman, Peacekeeper). That meant I was intimately familiar with Radio Shack because as an electrical engineer he often dragged me there with him.I still find amazing these machines.
Which is how we ended up with the CoCo.
We got a Commodore 64 in 1984 but the CoCo was still functional into 1987 or so. I used to have a small space heater with a fan only setting sat right on top of one of those air slots at full blast. Kept the CoCo from overheating and freezing when doing long game plays.