The Internet

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What is the Internet?

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The Internet is a global network of interconnected computers that communicate using standardized protocols, allowing for the sharing of information and resources.

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What does DNS stand for and what is its purpose?

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DNS stands for Domain Name System. It translates human-readable domain names (like www.example.com) into IP addresses that computers use to identify each other on the network.

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What was ARPANET?

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ARPANET (Advanced Research Projects Agency Network) was the first operational packet-switching network and the predecessor of the modern Internet, developed in the late 1960s.

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Who is Tim Berners-Lee?

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Tim Berners-Lee is a British computer scientist best known for inventing the World Wide Web while working at CERN in the late 1980s.

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What was the first message sent over the Internet?

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The first message intended to be sent over the Internet was 'LOGIN', but the system crashed after sending just the letters 'L' and 'O'.

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What is an IP address?

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An IP address (Internet Protocol address) is a unique string of numbers separated by periods (IPv4) or colons (IPv6) that identifies each computer using the Internet Protocol to communicate over a network.

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What is the World Wide Web?

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The World Wide Web is a system of interlinked hypertext documents accessed via the Internet, using web browsers to view pages that may contain text, images, videos, and other multimedia.

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What role do modems play in Internet connectivity?

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Modems (modulator-demodulators) convert digital data from a computer into analog for transmission over telephone lines and vice versa, enabling Internet access.

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What is packet switching?

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Packet switching is a method of data transmission where data is broken into packets that are sent independently over the network and reassembled at the destination.

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What is a web browser?

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A web browser is a software application used to access and view websites on the Internet, such as Google Chrome, Mozilla Firefox, and Safari.