Think 4, Page 50

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Across
  1. 4. shell that protects your device of damage
  2. 6. a piece of equipment that you wear over your ears with a part you can speak into, connected to a telephone or radio
  3. 7. a piece of equipment or software that finds the best way of sending information between any two networks
Down
  1. 1. electrical cable that temporarily connects an appliance to the mains electricity supply via a wall socket or extension cord
  2. 2. an object that allows you to connect two pieces of equipment of different types or sizes
  3. 3. device connected to a computer that produces images that can be seen on a website
  4. 4. an object used for connecting a piece of equipment to an electricity supply
  5. 5. a piece of equipment used for providing a battery with electricity