Computer

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Across
  1. 2. the program a computer's microprocessor uses to start the computer system after it is powered on.
  2. 4. a jack or socket that peripheral hardware plugs into.
  3. 5. a minute area of illumination on a display screen, one of many from which an image is composed.
  4. 6. a range of frequencies within a given band, in particular that used for transmitting a signal.
  5. 8. a set of rules that governs the connection of computer systems to the internet.
  6. 9. a system of words, letters, figures, or other symbols substituted for other words, letters, etc., especially for the purposes of secrecy.
Down
  1. 1. a mode of computer data storage in which digital data is stored on servers in off-site locations
  2. 3. a computer software package that performs a specific function directly for an end user or, in some cases, for another application.
  3. 7. A computer program that can copy itself and infect a computer without permission or knowledge of the user.