Kalkulaatorid läbi aegade

arvutuslükati

Jan 1, 1622

William Oughtred leiutas arvutuslükati http://en.wikipedia.org/wiki/Slide_rule http://en.wikipedia.org/wiki/Calculator#The_17th_century

arvutusmasin

Jan 1, 1642

1642 Blaise Pascal ehitas arvutusmasina http://en.wikipedia.org/wiki/Calculator#The_17th_century http://en.wikipedia.org/wiki/Pascaline

aritmomeeter

Oct 9, 1820

1820 Thomas de Colmar ehitas aritmomeetri http://en.wikipedia.org/wiki/Arithmometer http://en.wikipedia.org/wiki/Calculator#The_17th_century

kalkulaator

Jan 1, 1886

1886 Dorr Eugene Felt ehitas kalkulaatori http://en.wikipedia.org/wiki/Comptometer http://en.wikipedia.org/wiki/Calculator#The_17th_century

täis-elektrooniline kalkulaator

Jan 1, 1961

1961 maailma esimene täis-elektrooniline kalkulaator British Bell Punch/Sumlock kalkulaator ANITA (A New Inspiration To Arithmetic/Accounting) http://en.wikipedia.org/wiki/Sumlock_ANITA_calculator http://en.wikipedia.org/wiki/Calculator#The_17th_century

programmeeritav taskukalkulaator

Jan 1, 1974

1974 esimene programmeeritav taskukalkulaator HP-65 http://en.wikipedia.org/wiki/HP-65 http://en.wikipedia.org/wiki/Calculator#The_17th_century