🌐 Introduction to Internet and Web Quiz

Tim Berners-Lee proposed the World Wide Web in 1989 at CERN, Switzerland.

Tim Berners-Lee proposed the WWW in 1989; the first website went live in 1991.

The World Wide Web was proposed by Tim Berners-Lee at CERN, a research organisation in Switzerland.

The Internet is the physical infrastructure (network of networks). WWW is just ONE service running on top of it, consisting of linked webpages accessed via browsers.

Email is a separate service that runs on the Internet but is not part of the World Wide Web, which specifically refers to linked webpages.

A Web Server is a computer that stores website files and 'serves' (sends) them to web browsers whenever a page is requested.

URL stands for Uniform Resource Locator — the complete address of a resource on the Internet.

'https://' is the Protocol — it defines the rule/method used to fetch data from the server.

'/notes/chapter10' is the Path — it specifies the exact page/location within the website.

'www.csip12.in' is the Domain Name — the unique address of the website.

An Absolute URL contains the complete address (protocol + domain + path) and works regardless of where it is accessed from.

A Relative URL is a shortcut address (like '/notes/chapter10') that only makes sense when you're already on the same website/domain.

'https://www.csip12.in/notes/chapter10' includes the full protocol and domain, making it a complete Absolute URL that works from anywhere.

A Website is a collection of multiple related webpages, hosted together under one common domain name.

The browser toolbar is a part of the web BROWSER (software used to view sites), not a component OF the website itself.

A Webpage is a single document within a website, accessible via its own unique URL.

The Head section contains the title (shown on the browser tab) and metadata, none of which is visible in the main displayed content.

A 'Contact Us' page with fixed content that stays the same for every visitor is a classic example of a Static webpage.

Static webpages require only HTML and CSS since their content doesn't need to change or be generated dynamically.

An Instagram feed changes automatically based on the user, their activity, and database updates — a classic Dynamic webpage.

Dynamic webpages need HTML/CSS for structure PLUS server-side languages (like PHP or Python) and a database to generate changing content.

Static pages load faster because they don't require any server-side processing or database queries — the content is already fixed.

A Webpage is ONE single document with its own URL, while a Website is a COLLECTION of multiple related webpages under one domain.

csip12.in represents the entire website (domain), while csip12.in/notes/chapter10 is a single specific webpage within that website.

A Web Browser is software that allows users to request and view webpages — acting as a window into the World Wide Web.

Mozilla Firefox is one of the most commonly used web browsers, along with Chrome, Safari, and Edge.

The Back button navigates to the previously visited page, similar to flipping backward through pages of a book.

The Refresh/Reload button reloads the current page, useful for getting the latest version if content seems outdated or stuck.

The Homepage setting determines which page automatically opens when the browser is first launched.

Email (Electronic Mail) allows users to send and receive electronic letters/messages instantly over the Internet.

SMTP (Simple Mail Transfer Protocol) is the standard protocol used to send emails from client to server and between servers.

POP3 (Post Office Protocol) downloads emails to one device and typically removes them from the server, limiting access to just that device.

IMAP (Internet Message Access Protocol) keeps emails on the server, allowing synchronised access from multiple devices like a phone and laptop.

IMAP is ideal for multi-device access since it keeps emails synced on the server rather than downloading and deleting them from a single device.

Since POP3 downloads and typically removes emails from the server, they become inaccessible from any other device besides the one used to download them.

Chat refers to real-time, instant text-based communication between two or more users over the Internet.

A private conversation between exactly two people is called One-to-One Chat.

A conversation involving multiple people simultaneously is known as Group Chat.

Web-based Chat refers to chat services accessed directly through a website, without requiring a separate application.

VoIP stands for Voice over Internet Protocol, allowing voice/video calls to be made over the Internet.

VoIP converts voice into digital data packets and transmits them over the Internet, rather than using traditional phone lines.

WhatsApp Call uses VoIP technology, sending voice data over the Internet instead of traditional phone lines.

VoIP piggybacks on your existing Internet connection instead of requiring a separate, dedicated telephone network — making it far cheaper, especially for international calls.

The History of WWW covers its origin (proposed by Tim Berners-Lee in 1989 at CERN) and its development into today's web.

While WWW was proposed in 1989, the first website (info.cern.ch) went live in 1991.

A web server stores webpages, serves (delivers) content upon request, and often manages security/access permissions.

A complete URL can include Protocol, Domain Name, Port, Path, Query String, and Fragment — though not all are always visible/used.

'About Us' has fixed content for everyone (Static), while 'My Account' changes based on the logged-in user's specific data (Dynamic).

Email, Chat, and VoIP are distinct Internet applications: Email for asynchronous messages, Chat for real-time text, and VoIP for voice/video calls — all running over the Internet.

An Absolute URL contains the complete address including domain and protocol, working from anywhere. A Relative URL is a shortcut path that only functions correctly when already within the same website.

Understanding Static vs Dynamic webpages explains the fundamental difference between simple fixed-content sites and modern, personalised, database-driven websites like Facebook or Amazon.