Real Time System Applications

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Across
  1. 3. Geography
  2. 4. Real time Invigilation
  3. 6. Air
  4. 8. Service & Defense force
Down
  1. 1. Used for meeting&discussions(15 Lettered word)
  2. 2. Communication through social media
  3. 4. Audio
  4. 5. Protocol in Communication
  5. 7. Entertainment
  6. 9. Practical(Abbreviation)