CAO CROSSWORD PUZZLE - EVOLUTION OF COMPUTING

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