History of the Internet

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Across
  1. 5. the design and structure of a computer system
  2. 6. the basic systems and services
  3. 9. the most important part of something that the rest depends on
  4. 10. a set of rules that control the way data is sent between computers
  5. 11. the way a computer program presents information to a user or receives information from a user, in particular the layout of the screen and the menus
Down
  1. 1. to end with a particular result, or at a particular point
  2. 2. an electronic machine that can store, organize and find information, do processes with numbers and other data, and control other machines
  3. 3. people in general
  4. 4. the ability to do several things at the same time
  5. 7. involving a great or complete change
  6. 8. a division of an area of knowledge or a group of languages