Key terms to remember

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Across
  1. 6. Use to prevent, scan and detect viruses.
  2. 7. state of being stable
  3. 8. to free up disk space on a PC hard drive
  4. 9. necessary items for particular purpose
  5. 11. process of safeguarding important information
Down
  1. 1. state of being maintained
  2. 2. check and repair file system errors
  3. 3. physical components of computer
  4. 4. reduces the degree of fragmentation
  5. 5. fine particles of solid matter
  6. 7. programs used by a computer
  7. 10. malicious software variants