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 Unit-1: Basics in Website Design

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The Internet is a global network of computers that connects millions of people and organizations around the world. It consists of millions of smaller networks that are connected to each other to enable people to communicate, share information and access a wide variety of services. It is a network of networks, and is used for a variety of services, such as email, file sharing, streaming media, and Internet commerce. It is also a platform for researchers, academics, and businesses to collaborate and share information. The Internet has revolutionized the way people communicate, share data and access information.

Advantages and Disadvantages of the Internet:

Advantages

1. Access to Information: The internet provides access to a vast array of information. People can find nearly any kind of information they need through the internet.

2. Communication: The internet allows people to communicate with each other from all around the world. People can communicate through email, instant messaging, social media, and video chat.

3. Shopping: The internet allows people to shop for products and services from the comfort of their own homes.

4. Entertainment: The internet provides access to an array of entertainment options, such as streaming services, online gaming, and websites dedicated to providing news and other information.

5. Education: The internet provides access to educational resources, such as online courses, tutorials, and research materials.

Disadvantages

1. Security: The internet can be a dangerous place, as users are vulnerable to cybercrime and scams.

2. Addiction: People may become addicted to using the internet, which can lead to a decrease in productivity and focus.

3. Privacy: People may not be aware of how much of their personal data is available on the internet, which can lead to a lack of privacy.

4. Social Isolation: People may become socially isolated if they rely too heavily on the internet for communication.

5. Misinformation: The internet can be a source of misinformation, as anyone can post false information online.

History of Internet:

1. The internet began as a research project in the late 1960s funded by the U.S. Department of Defense’s Advanced Research Projects Agency (ARPA).

2. ARPANET, an ancestor to the modern Internet, was created in 1969 and connected four computers in California, Utah, Santa Barbara, and the University of California, Los Angeles.

3. The Internet Protocol Suite (TCP/IP) was developed in the 1970s and 1980s, allowing computers to communicate over long distances.

4. The first commercial Internet service provider, The World, went online in 1989.

5. The first web browser, Mosaic, was released in 1993.

6. The World Wide Web became popular in the mid-1990s, and by 2000, the Internet had become an essential part of everyday life.

WWW:

The World Wide Web (WWW) is a global system of interconnected computer networks that use the internet protocol suite (TCP/IP) to link billions of devices across the world. It enables users to access resources, such as websites, documents, images, videos, and other media, using web browsers such as Google Chrome, Safari, and Firefox. The WWW allows users to access and share information in a variety of ways, including through social media, blogs, emails, and other forms of digital communication. The WWW is a platform for social interaction, commerce, education, entertainment, and much more.

Applications of WWW:

  • Online Shopping: A user can browse through an online store to view and purchase items.
  • Social Media: A user can use social media platforms to interact with other users and post content.
  • Online Banking: A user can view account information, transfer money, and pay bills online.
  • Online Video Streaming: A user can stream videos from services like Netflix, Hulu, and YouTube.
  • Online Gaming: A user can play games online with friends or against computer-controlled opponents.
  • Collaborative Working: A user can collaborate with colleagues on projects via shared documents, video conferencing, and instant messaging.

Differences between Web and Web 2.0:

1. Web 1.0 is primarily focused on providing content while Web 2.0 is more focused on interaction and collaboration.

2. Web 1.0 has static websites while Web 2.0 offers dynamic content and applications.

3. Web 1.0 sites are typically viewed as one-way communication while Web 2.0 sites provide two-way communication.

4. Web 1.0 sites are more difficult to update while Web 2.0 sites are easier to update.

5. Web 1.0 sites are mostly text-based while Web 2.0 sites use multimedia content.

6. Web 1.0 sites have limited user interaction while Web 2.0 sites have extensive user interaction.

7. Web 1.0 sites are mostly closed systems while Web 2.0 sites are open systems.

8. Web 1.0 sites are mostly used for informational purposes while Web 2.0 sites are used for both informational and entertainment purposes.

9. Web 1.0 sites are typically designed by web developers while Web 2.0 sites are designed by users.

10. Web 1.0 sites have a limited amount of user-generated content while Web 2.0 sites have a large amount of user-generated content.

Web Standards

Web standards are a set of guidelines and standards that are used by web developers and designers to ensure that websites are compatible across multiple platforms and devices. They provide a common language for web developers, allowing them to create websites that are accessible and easy to use regardless of the user’s device or web browser. Web standards help to ensure that all users have a consistent experience when accessing websites and web applications. Popular web standards include HTML, CSS, and JavaScript.

Web protocols and application of web protocols.

Protocol is a set of rules which are used in digital communication to connect network devices and exchange information between them.

Web protocols are the rules and standards that govern how data is transferred over the internet. The most common web protocol is the Hypertext Transfer Protocol (HTTP), which is used to transfer web pages from a web server to a browser. Other common web protocols include File Transfer Protocol (FTP) for transferring files, Simple Mail Transfer Protocol (SMTP) for sending and receiving emails, and Secure Sockets Layer (SSL) and Transport Layer Security (TLS) for providing secure communication.

Web browser and usage of web browser:

A web browser is a software application that allows users to access, view, and navigate the Internet. Common examples of web browsers are Google Chrome, Mozilla Firefox, Safari, Internet Explorer, and Microsoft Edge.

Usage of Web Browser:

  1. Web browsers provide the ability to navigate the Internet by typing in a URL or clicking on a link to any website.
  2. You can use a web browser to download files such as documents, images, videos, and software from the Internet.
  3. Web browsers allow you to search the web for any type of information.
  4. Web browsers can be used to watch videos from streaming services such as YouTube, Netflix, and Hulu.
  5. Web browsers can be used to shop online, compare prices, and find deals.
  6. Many web browsers allow you to play online games directly in the browser.
  7. Web browsers can be used to access and use social networking websites such as Facebook, Twitter, and Instagram.
  8. Web browsers can be used to access and use email services such as Gmail, Yahoo, and Outlook.

Search engine and applications of search engine:

A search engine is a software system designed to search and locate information on the World Wide Web or a computer network. Popular search engines include Google, Bing, Yahoo!, and Baidu.

Applications of search engine:

1. Knowledge Discovery: Search engines are used to locate and extract useful data and information from large databases.

2. Online Shopping: Search engines help people to find and compare different products, prices, and stores.

3. Research: Search engines are used to locate and access scientific, legal, and scholarly articles for research purposes.

4. Advertising: Search engines can be used to target potential customers and advertise products.

5. Online Maps: Search engines can be used to locate places, routes, and directions on a map.

Concept of Client and Server computer:

A client computer is a computer that accesses services, resources, or data provided by another computer or server. It typically runs software applications that connect to servers to request data or services, such as accessing a website, retrieving emails from a mail server, or connecting to a database server.

A server computer, on the other hand, is a computer that provides services or resources to other computers, known as clients. Servers can provide a variety of services such as file sharing, web hosting, email, database management, and more.

Examples of client computers:

  • A laptop that accesses a website hosted on a web server.
  • A smartphone that connects to an email server to receive emails.
  • A gaming console that connects to a game server to play online games.

Examples of server computers:

  • A web server that hosts a website or web application.
  • A mail server that stores and manages email messages.
  • A file server that stores and shares files.

Web domain and web hosting:

Web domain and web hosting are two important components of having a website.

A web domain is the address of a website, such as www.example.com. It is registered with a domain name registrar, and it is unique to a particular website. Once registered, the domain name cannot be used by another website.

Web hosting is the service of providing physical storage space for a website. It is a server that stores the website files and makes them available online. The web hosting company is responsible for providing the technical infrastructure for the website to be viewable on the Internet.

Both web domain and web hosting are necessary for a website to be viewable on the Internet. The web domain is the name that people type into their browser to find the website, while the web hosting is the service that provides the physical space on a server for the website to exist.

Exercise:

  1. Describe the brief history of internet.
  2. Explain advantages and disadvantages of Internet.
  3. What is WWW? Explain with its any 5 applications.
  4. Define web standards.
  5. What is protocol? Write any four protocols.
  6. What is web browser? Write any five web browsers.
  7. Compare web and web 2.0.
  8. Write any five usages of browser.
  9. What is search engine? Write with its any 5 examples.
  10. What are the applications of search engine?
  11. Differentiate between client and server.
  12. What is web domain and web hosting?

End of Chapter I

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