Computer and Tech Essentials

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Across
  1. 1. an accurate worldwide navigational and surveying facility.
  2. 4. a finite sequence of well-defined, computer-implementable instructions.
  3. 5. a way of saving passwords.
  4. 7. the part of a computer where all the computing happens.
  5. 9. blocks unauthorized access while permitting outward communication.
  6. 12. a range of frequencies within a given band, in particular that used for transmitting a signal.
  7. 13. a computer/television screen.
  8. 14. a spare copy of data.
  9. 17. conceal data in something by converting it into a code.
  10. 18. software that is specifically designed to disrupt, damage, or gain unauthorized access to a computer system.
Down
  1. 2. interfere with a radio to make it useless.
  2. 3. a program that tries to destroy something.
  3. 5. memory in which high speed retrieval is possible.
  4. 6. sending scam emails to get personal information.
  5. 8. a combined device for modulation and demodulation.
  6. 10. a place where you can look things up.
  7. 11. code used in digital computers, based on a number system in which there are only two possible states, off and on, usually symbolized by 0 and 1.
  8. 12. a group of binary digits or bits (usually eight) operated on as a unit.
  9. 15. memory device for computer system.
  10. 16. an act or instance of booting a computer system again.