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Text File  |  1993-03-26  |  324 b   |  13 lines
  1. 500 B.C. - A.D. 1822
  2. Boolean Algebra
  3. Boolean Logic Machine
  4. Key-Driven Calculator
  5. Punched Card System (Electromechanical)
  6. Multiplication Machine (Direct)
  7. The Vacuum Tube
  8. The Flip-Flop
  9. Analog Computer (For Differential Equations)
  10. Mechanical Program
  11. Logic Machines (General Model)
  12. 1937 - 1949
  13. Advances in Computers 1823 - 1936