IT

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Across
  1. 3. the transfer of data from one digital device to another
  2. 5. a network that is wired
  3. 6. Networks classified as wireless
  4. 7. an online messaging system
Down
  1. 1. an internet protocol address
  2. 2. a worldwide system of computer networks
  3. 4. computer server or device that provides network to another