history of computer n etwork The history of computer networks is vast, so we will discuss different generations of computer networks according to their timeline In his paper "Information Flow in Large Communication Nets" , Leonard Kleinrock introduced the notion of ARPANET (one of the early computer networks) in 1961 . The telephone network was the most powerful network on the planet at the time. The telephone network transmits data from a sender to a receiver using circuit switching , which is a suitable choice given that voice is transferred at a consistent pace between sender and receiver. Leonard Kleinrock published the first work on packet switching methods. Kleinrock's work neatly illustrated the efficiency of the packet-switching strategy employing queuing theory for busy traffic sources. At the same time, Paul Baran began researching the use of packet switching for secure voice-over military...
