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Questions and Answers
What is the Internet?
The Internet is a collection of computers connected by network cables or through satellite links. It is a network of networks.
What is a local area network (LAN)?
A local area network is a network that connects individual computers within an organization. It is usually connected to the Internet through one node.
Who first described the concept of networking and social interactions through computers?
J.C.R. Licklider of MIT was the first to describe the concept of networking and social interactions through computers. He wrote a series of memos in August 1962 discussing his 'Galactic Network' concept.
How did J.C.R. Licklider envision computers to be connected globally?
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How are computing devices connected to the Internet?
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What is HTML?
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Is HTML a programming language?
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What are HTML tags?
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What is the purpose of HTML entities?
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How can you search for HTML entities on the internet?
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Study Notes
Internet Overview
- The Internet is a collection of computers connected by network cables or satellite links.
- It is a network of networks, with individual computers in an organization connected in a local area network (LAN).
- One node on the LAN is physically connected to the Internet, allowing millions of devices to connect to the Internet permanently or temporarily.
History of the Internet
- The concept of social interactions enabled through networking was first described by J.C.R. Licklider of MIT in 1962 as the "Galactic Network" concept.
- He envisioned a globally interconnected set of computers.
HTML Overview
- HTML (Hyper Text Markup Language) is not a programming language, but a markup language.
- HTML uses tags to instruct browsers to display information, with opening and closing tags.
- HTML entities are used to display reserved characters in HTML.
HTML Structure
- A basic HTML document structure includes tags, such as ``, to display headings.
- HTML entities, such as
<and&Backslash;, are used to display special characters.
Important Concepts
- A web system consists of clients (browsers) and servers, with clients requesting resources from servers.
- URL (Uniform Resource Locator) and domain names are used to identify and locate web resources.
- Client-side scripting and server-side scripting are used to create dynamic web pages.
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Description
Test your knowledge on the fundamentals of the internet and web systems. Explore topics such as web protocols, browsers, servers, and client-side scripting. Learn about the internet's architecture and domain names. Take this quiz to assess your understanding of these key concepts.
