Timeline of file sharing
== 1970s == 1976 – XMODEM a point-to-point binary transfer protocol by Ward Christensen. February 1978 – Ward Christensen's CBBS becomes the first Bulletin board system.
== 1970s == 1976 – XMODEM a point-to-point binary transfer protocol by Ward Christensen. February 1978 – Ward Christensen's CBBS becomes the first Bulletin board system.
== 1970s == 1976 – XMODEM a point-to-point binary transfer protocol by Ward Christensen. February 1978 – Ward Christensen's CBBS becomes the first Bulletin board system.
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