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Computer scientists Vinton Cerf and Bob Kahn are credited with inventing the Internet communication protocols we use today and the system referred to as the Internet. Cerf and Kahn developed a set of guidelines for data transfer using packet switching in 1980, calling those guidelines TCP/IP, or Transmission Control Protocol and Internet Protocol. The TCP part of the protocol is in charge of packing the data before it moves across the network and unpacking it once it has arrived. The IP component acts as the trip coordinator and maps the movement of information from its start point to its end point.

Though other protocols were developed and used before TCP/IP, such as the file transfer protocol (FTP) and network control protocol (NCP), the Internet as we know it today is built on the basis of Cerf and Kahn’s "network of networks."