Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Muna 1979, kuvhurwa kwespredishiti yeVisiCalc (pakutanga yeApple II) kwakatanga kushandura microcomputer kubva pakuvaraidzwa kwevanofarira makombiyuta kuva chishandiso chebhizimisi. Pashure pokubudiswa muna 1981 neIBM yeIBM PC yayo, shoko rokuti kombiyuta yomunhu oga rakatanga kushandiswa kazhinji nokuda kwemakombiyuta maduku anowirirana neIBM PC architecture (PC inowirirana).  Mubvunzo: Chii chakaita kuti makombiyuta ave chinhu chinoshandiswa nemabhizimisi?
VisiCalc spreadsheet