COMPUTER PUZZLE

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Across
  1. 4. a subsystem that transfers data between computer components inside a computer or between computers
  2. 7. fixed programs and data that internally control various electronic devices
  3. 8. a group of integrated circuits, or chips, that are designed to work together
  4. 10. the physical components of a computer
  5. 13. the unique number that specifies a memory location
  6. 14. a collection of computers and devices connected by communications channels
  7. 16. an electronic visual display for computers
  8. 17. a fast memory that transparently improves the performance of a larger, but slower memory or storage device
  9. 18. a pointing device
Down
  1. 1. an input device, partially modeled after the typewriter
  2. 2. computer programs and other kinds of information read and written by computers.
  3. 3. a specification to establish communication between devices and a host controller
  4. 5. the central printed circuit board
  5. 6. a computer program that can replicate itself and spread from one computer to another
  6. 7. a hardware device or software to protect a computer in network
  7. 9. a computer which may be used to provide services to clients
  8. 11. a peripheral which produces a text or graphics of documents stored in electronic form
  9. 12. devices that are used to store data
  10. 15. feeds its images in real time to a computer