What is perhaps most striking is that although the
ARPANET's protocol architects embraced layering as a fundamental principle from the very beginning, the design they ultimately adopted did not adhere to any preconceived notion about how functions should be divided among the different layers.
Since that historic
ARPANET event 40 years ago, SRI has continued to play a significant role in the evolution of computing, the Internet, and communications, including participating in the first use of the new internetworking protocol across three separate networks in 1977 and managing the Network Information Center, or NIC, for more than two decades.
Before 1973 the
Arpanet, funded by the US government's Advanced Research Projects Agency, was an entirely US phenomenon and, at that time, had 20 nodes.
Sending and receiving messages via the
ARPANET became possible and E-Mail as we know it was born along with the by-now universal @ symbol in addresses.
From
ARPANET came technologies, protocols, and documentation standards used in the present Internet:
While all that was merrily bubbling away, more and more people in the know were demanding to be allowed to use a government funded system known variously as
ARPANET, the Defense Data Network and, finally, the Internet.
From its roots as an acoustical design consulting firm, to the implementation and operation of the
ARPANET - the forerunner of today's Internet - to the development of the first network email, which established the @ sign as an icon for the digital age, BBN Technologies provides the same technical expertise and innovation to both government and commercial customers today.
These projects led to an early computer network, called
ARPANET, which morphed into the Internet when a military subnet split off from the more academic
ARPANET in the early 1980s.
universities were hooked up in the first network, which was called
ARPANET. Scientists built
ARPANET with the intention of creating a network that would still be able to function efficiently if part of the network was damaged.
Little did they know back in 1967, when the Internet began as
Arpanet, that transmitting information electronically would not only be popular, but would become the norm.