History of Computing, Alexandra

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Across
  1. 2. they had multiplication tables, but could not go farther than five times tables
  2. 6. coined the term debugging
  3. 9. built with intergraded circuit chips as logic
  4. 11. using fingers to count
  5. 12. is a rectangle frame with fixed rods containing moveable wooden beads
  6. 13. invented pascals gears
  7. 14. invented the mark 1
  8. 15. kept count by making notches in wood, knots in rope, or by collecting shells and stones
Down
  1. 1. these people invented the abacus
  2. 3. would have been the first computer but, it was never built because it was ahead of its time
  3. 4. a machine which combined electromechanics with punched cards for input
  4. 5. invented the punchcard
  5. 7. a machine with a series of interlocking gears and discs
  6. 8. worked together to create the ENIAC
  7. 10. first female programmer