Crossword

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Across
  1. 4. An alias or screen name.
  2. 6. Careful study of something
  3. 8. A set of information organised for easy access by computers.
  4. 10. The part of a computer you press in order to insert a letter into a tekst.
  5. 12. Looking through or reading casually.
  6. 13. To add a piece of a code to software to correct errors.
Down
  1. 1. A search command
  2. 2. A software program capable of reproducing itself and usually capable of causing great harm to files or other programs
  3. 3. Running an early, possibly unreliable version of a program in order to find errors.
  4. 5. The collection of all he instructions that makes a program work.
  5. 7. Kept located at a particular location.
  6. 9. An error in a piece of software.
  7. 11. Shutting down because of malfunction.