Internet services

The Internet can be used in in different ways: for distributing and retrieving information, for one-to-one, one-to-many and many-to-many communication, and for the access services. Accordingly, there are different services on offer. The most important of these are listed below.

Telnet

FTP (File Transfer Protocol)

Electronic Messaging (E-Mail)

World Wide Web (WWW)

Bulletin Board Systems (BBS)

Electronic Data Interchange (EDI)

Internet Relay Chat (IRC)

Multiple User Dimensions (MUDs)

Gopher

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Network Information Center (NIC)

Network information centers are organizations responsible for registering and maintaining the domain names on the World Wide Web. Until competition in domain name registration was introduced, they were the only ones responsible. Most countries have their own network information center.

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Intranet

As a local area network (LAN), an Intranet is a secured network of computers based on the IP protocol and with restricted access.

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Defense Advanced Research Project Agency (DARPA)

DARPA (Defense Advanced Research Projects Agency) is the independent research branch of the U.S. Department of Defense that, among its other accomplishments, funded a project that in time was to lead to the creation of the Internet. Originally called ARPA (the "D" was added to its name later), DARPA came into being in 1958 as a reaction to the success of Sputnik, Russia's first manned satellite. DARPA's explicit mission was (and still is) to think independently of the rest of the military and to respond quickly and innovatively to national defense challenges.

In the late 1960s, DARPA provided funds and oversight for a project aimed at interconnecting computers at four university research sites. By 1972, this initial network, now called the ARPAnet, had grown to 37 computers. ARPANet and the technologies that went into it, including the evolving Internet Protocol (IP) and the Transmission Control Protocol (TCP), led to the Internet that we know today.

http://www.darpa.mil

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National Science Foundation (NSF)

Established in 1950, the National Science Foundation is an independent agency of the U.S. government dedicated to the funding in basic research and education in a wide range of sciences and in mathematics and engineering. Today, the NSF supplies about one quarter of total federal support of basic scientific research at academic institutions.

http://www.nsf.gov

For more detailed information see the Encyclopaedia Britannica: http://www.britannica.com/bcom/eb/article/0/0,5716,2450+1+2440,00.html

http://www.nsf.gov/
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