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Communication is generally understood to be a special form of telecommunication with relocation of messages that are bound to material carriers ( letters , postcards , data carriers , press ). The carriers are not changed in their respective form.

Message carriers are e.g. B. Couriers or deliverers from postal companies . The Chaski from the Inca Empire from the 13th to 16th centuries are among the oldest bearers .

In the narrower sense ( postal system ), it was understood to mean the parts of postal traffic (mail, data carrier transport, newspaper transport).

See in contrast: Message transmission