Small keyboards with mouse.
Though there something special with the rapid direct response a C64 or DOS will give in text mode.
Something that does come across is Gates short sightedness. 640k enough!, keyboard enough!, local disk enough!, who needs internet!?, who needs webb!?, who needs privilege separation!?, etc..
He figured out much the same as Apple has:
People generally don't care about "great". They just want "good enough" and they'll pay for that.
