TECHNOLOGIES

State and Sessions

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The technologies described so far enable the server and client components of a web application to exchange and process data in numerous ways. To implement most kinds of useful functionality, however, applications need to track the state of each user’s interaction with the application across multiple requests. For example, a shopping application may allow users … Read more

ARPANET

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In January 1969, the Advanced Research Projects Agency of the Department of Defense (ARPA) awarded a contract to Bolt, Beranek and Newman (BBN) to design and construct a communications network. By the end of 1969, an experimental ARPANET was operational between four university nodes. This system was the forerunner of the Internet. The idea for … Read more