Computers are very simple you see we take the hearts of dead stars and we flatten them into crystal chips and then we etch tiny pathways using concentrated light into the dead star crystal chips and if we etch the pathways just so we can trick the crystals into doing our thinking for us hope this clears things up.
AFAIK The only technologies that are more advanced are artisanal, small batch type manufacturing done explicitly for research and development purposes.
Semiconductors are the only mass-manufactured product that regularly has to take quantum mechanical effects into consideration as part of day-to-day operation, as far as I know.
