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UML and Data Modeling: A Reconciliation by David Hay

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It quickly also became apparent that beyond having multiple people working on one computer, the computers themselves could be conected together. This was the origin of ARPANET.

The first recorded description of the social interactions that could be enabled through networking was a series of memos written by J.C.R. Licklider of MIT in August 1962 discussing his Galactic Network concept. He envisioned a globally interconnected set of computers through which everyone could quickly access data and programs from any site. In spirit, the concept was very much like the Internet of today.[114]

The only physical network available at the time for connecting computers was the telephone system. This was a Circuit Network, which required a physical ...

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