2) Definition of the Internet ICT-unit-1


Definition of the Internet:


The Internet is a global network of interconnected computers that enables the exchange of data and information across various systems and devices. It operates through a set of standardized protocols, most notably Transmission Control Protocol (TCP) and Internet Protocol (IP), which allow devices to communicate with each other across different networks.

The Internet provides access to vast resources like websites, email, social media, cloud storage, and multimedia content. It is used for activities ranging from web browsing and online shopping to communication and entertainment.

Interesting Facts About the Internet: 

Origin : The Internet evolved from a project called ARPANET, developed in the late 1960s by the U.S. Department of Defense, initially to connect research institutions.

First Website : The first website, info.cern.ch, was created by Tim Berners-Lee in 1991, who also invented the World Wide Web (WWW). This site explained how the web worked.

Global User Growth: In 2023, over 5 billion people—approximately 64% of the world’s population—are active users of the Internet.

First Email: The first email was sent by **Ray Tomlinson** in 1971, using the now-famous "@" symbol to separate the user's name from the computer name.

The Internet of Things (IoT): The number of internet-connected devices (smartphones, sensors, smart appliances) has exploded in recent years, with estimates suggesting over 30 billion IoT devices in use by 2025.

Domain Names: The first registered domain was symbolics.com in 1985. Today, there are more than 1.9 billion websites, though not all are active.

Undersea Cables : The internet relies heavily on over 1.2 million kilometers of submarine cables, which connect continents to maintain global communication. These cables are often only a few inches in diameter.

Internet vs.World Wide Web : The Internet is the overall system of connected networks, while the World Wide Web is just one part of the Internet, consisting of websites and web pages that can be accessed via browsers.



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