Communication, Networks and the Internet.

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Across
  1. 4. A device used to convert digital signals emitted by the computer into singnals that can be transmitted over the phone.
  2. 5. the volume of data that can be transmitted in a given time.
  3. 12. A WAN can connect networks across a large _____________ area, such as a city or country.
  4. 13. A peer-to-peer network allows every computer to _______ directly.
  5. 14. LANS can be divided into _______ categories based on how the computers communicate with one another.
  6. 16. Used to refer to data transmission over a telephone line using an analogue modem.
  7. 18. to data transmission using ADSL and cable.
  8. 20. A ____________ is a group of two or more computers linked together so they can share resources and communicate with one another.
Down
  1. 1. Data ___________ channels carry the data from one location to another and can be classified according to bandwidth.
  2. 2. __________ Digital Subscriber Line
  3. 3. A _______ can be used where it may be difficult or impractical to use a cabled LAN.
  4. 6. LANS in different countries can connect together to form a WAN, using _____________ links.
  5. 7. An international network of networks that connects computers worldwide.
  6. 8. A wireless access point contains a radio receiver, encryption and communications software.
  7. 9. The range of a wireless network can be extended using a ________.
  8. 10. A __________ consists of a collection of computers that share information and communicate with each other over a network.
  9. 11. Is a form of wireless communication designed to share information
  10. 15. access the Internet you need to subscribe to an _________.
  11. 17. Bluetooth has a much slower data transfer rate than ______ and a much shorter range.
  12. 19. Enable several computers to communicate through a wireless access point at the same time.