I have a couple old radios from the 1940s/1950s. They come apart with a handful of screws and on the inside of the case there is a full schematic. I'd argue tha

I have a couple old radios from the 1940s/1950s. They come apart with a handful of screws and on the inside of the case there is a full schematic. I'd argue that it is perhaps not PCs that have changed but rather the rest of the universe of household appliances. The first home computers were sold as kits and put together by fervent hobbyists. The original PCs relied on many iterations of standardization and competition amongst clones to become cheap enough to hit peak household adoption. Now PC use is waning in favor of tablets, phones, and smart TVs. As before, the pool of PC users includes a higher-than-average concentration of enthusiasts who enjoy to tinker, thus sustaining a market.