decentralized Internet is a collection of interconnected communication networks, using the family of TCP / IP, ensuring that the physical networks that comprise heterogeneous work as a single logical network, worldwide. Its origins date back to 1969, when he established the first connection of computers, known as ARPANET, three universities in California and one in Utah, USA. One of the most successful services on the Internet has been the World Wide Web (WWW, or "Web"), to the extent that it is common confusion between terms. The WWW is a set of protocols that allows a simple, remote consultation hypertext files. This was a later development (1990) and uses the Internet as the transmission medium.
There are, therefore, many other Internet services and protocols besides the Web: sending email (SMTP), file transfer (FTP and P2P), online conversations (IRC), instant messaging and presence, content delivery and multimedia-telephony (VoIP), television (IPTV) - electronic newsletters (NNTP) access remotely to other machines (SSH and Telnet) or online games.
Internet has a profound impact on work, leisure and knowledge worldwide. Thanks to the web, millions of people have easy and immediate access to a vast and diverse amount of information online. An example is the development and distribution of software collaboration of Free / Libre / Open-Source (EDIS) such as GNU, Linux, Mozilla and OpenOffice.org.
Compared to encyclopedias and traditional libraries, the Web has enabled a sudden and extreme decentralization of information and data. Some companies and individuals have taken the use of weblogs, which are used largely as updated daily. Some commercial organizations encourage staff to enter their areas of specialization in their sites, hoping to impress visitors with expert knowledge and free information.
Internet has many of the homes and businesses in rich countries, this aspect has opened a digital divide in poor countries, where Internet penetration and new technologies is very limited for people.
However, over time has been extended to Internet access in almost all regions of the world, So it is relatively easy to find at least 2 computers connected in remote regions.
Source: http://es.wikipedia.org/wiki/Acceso_a_internet
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