internet and network

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Across
  1. 3. The first network for military
  2. 7. Communication at a distance
Down
  1. 1. Modulate/demodulate analog to digital signal
  2. 2. First satellite launched by URRS
  3. 4. Wide Area Network
  4. 5. The channel that helps the transmission of data packets
  5. 6. Network of networks
  6. 8. Local area Network