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packet switching. n. A method of data transmission in which data is broken into small blocks that are transmitted over different channels and are reassembled into their original order at their destination.
Originally Answered: What is the difference between message switching and packet switching? Packet Switching is able to route a package, e.g. a IP-Package, over different routes. A message can consist of more than one package and is basically cut into package pieces and those pieces can go different routes from sender to receiver.