tach history

  • Period: to

    tech

  • kdf9

    KDF9 Timesharing Director (English Electric) An early, fully hardware secured, fully pre-emptive process switching, multi-programming operating system for KDF9
  • dos

  • apple

    Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services
  • microsoft

    Sometime about the year 1590, two Dutch spectacle makers, Zaccharias Janssen and his father Hans started experimenting with these lenses. They put several lenses in a tube and made a very important discovery.
  • abap

    in 1933 abap was created
  • windows

    Microsoft introduced an operating environment named Windows on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs)