Computer History

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Across
  1. 2. the first large-scale computer to allow use of vacuum tubes for computing
  2. 6. Who created the vacuum tube to be used in computers?
  3. 8. given credit for the first computer
  4. 9. created the first computer program
  5. 10. How did Herman Hollerith's machine work?
  6. 11. Which computer programmer is given credit for the term computer "bug"?
Down
  1. 1. What does ENIAC stand for?
  2. 3. electronically controlled mechanical switches
  3. 4. What was the first computer bug?
  4. 5. a digital mechanical calculator
  5. 7. What does IBM stand for?