CAO CROSSWORD PUZZLE - EVOLUTION OF COMPUTING

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Across
  1. 3. this is a computer operating program that helps the user interact with different things, created Microsoft, 1980s
  2. 4. indicate the first generation of computers
  3. 7. the first calculator to be produced in any quantity
  4. 10. indicate the second generation of computers
  5. 12. a thing that allows the user to interact with the electronic
  6. 13. this is is an integrated circuit that contains all the functions of a central processing unit of a computer
  7. 14. the first computer of first generation
Down
  1. 1. indicate the third generation of computers
  2. 2. the first commercial computer
  3. 4. fourth generation used this technology
  4. 5. first calculating machine
  5. 6. a loom that uses punch cards
  6. 8. 1 the first program controlled machine
  7. 9. a handheld pointing device used for computers and laptops
  8. 11. BONES which type of rods used for multiplication