First, Second and Third generation Computers

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Across
  1. 5. When this computer was used, lights all over Philadelphia would dim
  2. 7. Third generation technology
  3. 9. Developed by British code breakers in 1943-1945
  4. 10. First generation technology
Down
  1. 1. Second generation technology
  2. 2. The third generation computers interfaced with this
  3. 3. Output device introduced in third generation computers
  4. 4. In the abbreviation "ABC" what does the B represent
  5. 6. Input device introduced in third generation computers
  6. 8. Second generation computers used this language