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• Access to the ARPANET was expanded in 1981 when the National Science Foundation (NSF) developed the Computer Science Network (CSNET). In 1982, the Internet Protocol Suite (TCP/IP) was standardized and the concept of a world-wide network of fully interconnected TCP/IP networks called the Internet was introduced.
NSFNETsupercomputer
[27] Internetservice providers
Worldwide Internet users
2005 2010 2013a
World population[33]
6.5 billion 6.9 billion 7.1 billion
Not using the Internet
84% 70% 61%
Using the Internet
16% 30% 39%
Users in the developing
world
8% 21% 31%
Users in the developed
world
51% 67% 77%
COMMUNICATION• Email is an important communications service
available on the Internet. The concept of sendingelectronic text messages between parties in a wayanalogous to mailing letters or memos predates thecreation of the Internet. Pictures, documents andother files are sent as email attachments. Emails canbe cc-ed to multiple email addresses. Internettelephony is another common communications servicemade possible by the creation of theInternet. VoIP stands for Voice-over-InternetProtocol, referring to the protocol that underlies allInternet communication. The idea began in the early1990s with walkie-talkie-like voice applications forpersonal computers
• Facebook is an online social networking serviceheadquartered in Menlo Park, California. Itswebsite was launched on February 4, 2004, byMark Zuckerberg with his college roommates andfellow Harvard
• Founded: February 4, 2004, Cambridge,Massachusetts, United States
• CEO Mark Zuckerberg• Founders: Mark Zuckerberg, Dustin
Moskovitz, Eduardo Saverin ,AndrewMcCollum, Chris Hughes
• Stock price: FB (NASDAQ) US$ 80.78 +0.01(+0.01%)
Founders Evan Williams Noah Glass JackDorsey Biz Stone