History and Generations of a Computer

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Across
  1. 3. general purpose device that can be programmed to carry out a set of arithmetic and logical equations
  2. 6. Used for memory in first generation computers
  3. 9. QWERTY Keyboard
  4. 10. performs the four basic math operations
  5. 13. made by Herman Hollerith
  6. 14. invented by Charles Babbage
  7. 16. means of circuitry for first generation of computers
  8. 17. made computers smaller and cheaper, 3rd generation of computers
  9. 18. fifth generation of computers
  10. 20. designed to challenge QWERTY
Down
  1. 1. thousands of integrated circuits on one silicon chip
  2. 2. released the MAcintosh in 1984
  3. 4. performs addition and subtraction
  4. 5. replaced memory for first generation computers
  5. 7. invented by Da Vinci
  6. 8. replaced circuitry for first generation computers
  7. 11. father of computers
  8. 12. made by Jacquard
  9. 15. invented by Chinese or Babylonians
  10. 19. problem with first generation computers