Computer History

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Across
  1. 4. english mathematician and professor
  2. 7. designed to record measurements, rather than be in mathematical calculations
  3. 8. who was lord byron's daughter
  4. 9. developed in 1642 as a way to simplify tax computations
  5. 10. a scottish mathematician
Down
  1. 1. who investigated the idea of a high speed calculator
  2. 2. invented a device called the stepped reckoner
  3. 3. calculations were made by sliding beads back and forth on a frame
  4. 5. who developed a card sorter, which sorted cards into 12 groups
  5. 6. computer discoveries have been organized into