Assertion: personal computer | /r/AtLocation | use
Facets:
Source sentences:
text: More than 500 million personal computers were in use in 2002 and one billion personal computers had been sold worldwide from the mid-1970s up to this time.
text: More than 500 million PCs were in use in 2002 and one billion personal computers had been sold worldwide since mid-1970s till this time.
text: More than 500 million personal computers were in use in 2002 and one billion personal computers had been sold worldwide from the mid-1970s up to this time.