The Internet is a global network of interconnected computers that allows people and institutions around the world to connect and share information over long distances. It provides a variety of services like accessing web pages, sending email, participating in online discussions, transferring files, and voice/video calls. The Internet revolution has radically changed social relations by expanding social networks and providing access to diverse information, people, and ideas from around the world.

1. INTERNET
Advances in communication systems and their worldwide dissemination are
facilitating the interconnection between people and institutions around the world and
reducing or eliminating distance and time barriers.
The Internet revolution and its continuous evolution are representing a radical change
in the way of understanding social relations, by expanding the social framework and
allowing access to information, people and ideas of the most varied nature.
The Internet is a global network of computers, decentralized, which allows many
computers to connect to each other through a series of communication protocols,
through copper cables, fiber optic cables, wireless connections and others.
This worldwide network of computers provides a variety of services:
• Browsing on web pages (WWW, World Wide Web), a system ofdocuments or files
linkedthat can be viewed through a browser.
• Email (e-mail), which allows the sending of messages between users.
• News groups (news), forums, instant messaging (chat), etc., which are spaces for
discussion and exchange of experiences.
• File transfer quickly via FTP (file protocol transfer) andexchange
filein so-called P2P networks (peer to peer).
• Communication via voice (voice over IP, VoIP) or videoconferencing (Skype).
• Radio, television and press.
• Others: purchases of all kinds, access to bank accounts, distance courses,job
search, enrollment in colleges and universities, etc.