- ~1000BC The abacus
- 1621 The slide rule invented
- 1625 Wilhelm Schickard's mechanical calculator
- 1822 Charles Babbage's Difference Engine
- 1926 First patent for a semiconductor transistor
- 1937 Alan Turing invents the Turing Machine
- 1939 Atanasoff-Berry Computer created at Iowa State
- the world's first electronic digital computer
- 1939 to 1944 Howard Aiken's Harvard Mark I (the IBM ASCC)
- 1940 Konrad Zuse -Z2 uses telephone relays instead of mechanical logical circuits
- 1943 Collossus - British vacuum tube computer
- 1944 Grace Hopper, Mark I Programmer (Harvard Mark I)
- 1945 First Computer "Bug", Vannevar Bush "As we may think"
- 1948 to 1951 The first commercial computer – UNIVAC
- 1952 G.W.A. Dummer conceives integrated circuits
- 1954 FORTRAN language developed by John Backus (IBM)
- 1955 First disk storage (IBM)
- 1958 First integrated circuit
- 1963 Mouse invented by Douglas Englebart
- 1963 BASIC (standing for Beginner's All Purpose Symbolic Instruction Code) was written (invented) at Dartmouth College, by mathematicians John George Kemeny and Tom Kurtzas as a teaching tool for undergraduate
- 1969 UNIX OS developed by Kenneth Thompson
- 1970 First static and dynamic RAMs
- 1971 First microprocessor: the 4004
- 1972 C language created by Dennis Ritchie
- 1975 Microsoft founded by Bill Gates and Paul Allen
- 1976 Apple I and Apple II microcomputers released
- 1981 First IBM PC with DOS
- 1985 Microsoft Windows introduced
- 1985 C++ language introduced
- 1992 Pentium processor
- 1993 First PDA
- 1994 JAVA introduced by James Gosling
- 1994 Csharp language introduced
- ..will see to get other stuff
Information taken from some random computer science ppt. Not responsible if some date is wrong ;).
