>.Radio Shack use to be a place for kids to get experiment kits and circuits and learn things about physics and electricity with real hands on experience. They were one of the first into personal computers too.
I imagine the first PCs, Apples and such, used many RS parts.
The TRS-80 Model 100 was a true landmark in computing. It was the first "notebook" computer that was portable and practical. This model was incredibly popular and used long after other computers of its time were thrown away. I think it only was made obsolete by the iPhone era. There are still clubs today where owners keep theirs working. This was the last machine that Bill Gates wrote code for, and he considers it one of his favorite computers of all time.