1-Web2.0
A- Web 2.0 describes the current state of the internet, which has more user-generated content and usability for end-users compared to its earlier incarnation, Web 1.0. In general, Web 2.0 refers to the 21st-century Internet applications that have transformed the digital era in the aftermath of the dotcom bubble
B-Understanding Web 2.0
Web 2.0 does not refer to any specific technical upgrades to the internet. It simply refers to a shift in how the internet is used in the 21st century. In the new age, there is a higher level of information sharing and interconnectedness among participants. This new version allows users to actively participate in the experience rather than just acting as passive viewers who take in information.
Examples of Web 2.0 sites include Wikipedia, Facebook, Twitter, and various blogs, which all have transformed the way the same information is shared and delivered.
The social aspect of the Internet has been particularly transformed; in general, social media allows users to engage and interact with one another by sharing thoughts, perspectives, and opinions. Users can tag, share, tweet, and like.
Advantages and Disadvantages of Web 2.0
The development of technology has allowed users to share their thoughts and opinions with others, which has created new ways of organizing and connecting to other people and promoted a greater degree of collaboration.
But there are a lot of disadvantages to the Internet acting more like an open forum. Through the expansion of social media, we have seen an increase in online stalking, cyberbullying, doxing, identity theft, and other online crimes. There is also the threat of misinformation spreading among users, whether that's through open-source information sharing sites or on social media
Like Web 1.0, Web 2.0 is another transitional phase in the evolution of the Internet. Web 3.0 is predicted to be called the Semantic Web because it will be tailored to become more intuitive to every user's needs
2-Web 3.0
Web 3.0 represents the next iteration or phase of the evolution of the web/Internet and potentially could be as disruptive and represent as big a paradigm shift as Web 2.0. Web 3.0 is built upon the core concepts of decentralization, openness, and greater user utility.
Berners-Lee had expounded upon some of these key concepts back in the 1990s, as outlined below:
Decentralization: “No permission is needed from a central authority to post anything on the web, there is no central controlling node, and so no single point of failure...and no ‘kill switch’! This also implies freedom from indiscriminate censorship and surveillance.”
Bottom-up design: “Instead of code being written and controlled by a small group of experts, it was developed in full view of everyone, encouraging maximum participation and experimentation
Defining Features of Web 3.0
While there is as yet no standardized definition of Web 3.0, it does have a few defining features:
Decentralization: This is a core tenet of Web 3.0. In Web 2.0, computers use HTTP in the form of unique web addresses to find information, which is stored at a fixed location, generally on a single server. With Web 3.0, because information would be found based on its content, it could be stored in multiple locations simultaneously and hence be decentralized. This would break down the massive databases currently held by Internet giants like Facebook (now Meta) and Google, and would hand greater control to users
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