History Of computers By 19delazilwaap2 Jun 14, 1822 The Difference Engine Period: Jul 14, 1822 to Oct 22, 2010 The History Of Computers Dec 11, 1944 Colussus The date is unknown Nov 24, 1965 Programma101 The Month and Date are unknown Nov 24, 1973 Xerox Alto The Date and the Month are unknown Oct 24, 1977 Commedore PET The Date is unknown Aug 24, 1981 IBM PC The Date is unknown Oct 15, 1990 Machintosh SE Nov 24, 1995 HP Pavillion The Date and Month are unknown Aug 7, 2007 IMac (Aluminum) Oct 22, 2010 HP Slate 500
