I.T.

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Across
  1. 5. electronic mail
  2. 6. use to book flights, tickets etc
  3. 7. input device
  4. 8. social networking site
Down
  1. 1. computer teacher
  2. 2. you might send one
  3. 3. p_ _ _ _ _ _ part of the hardware
  4. 4. other word for screen
  5. 6. 'I' in I.T.