Web3 enhances the internet as we know it today with a few other added characteristics. web3 is:
Distributed and robust
Native built-in payments
In web3, developers don't usually build and deploy applications that run on a single server or that store their data in a single database. Instead, web3 applications either run on blockchains, decentralized networks of many peer-to-peer nodes (servers), or a combination of the two.
If this is web 3.0, what was web 2.0 and web 1.0??
In the web2 world, you don’t have to be a developer to participate in the creation process. Many apps are built in a way that easily allows anyone to be a creator.
If you want to craft a thought and share it with the world, you can. If you want to upload a video and allow millions of people to see it, interact with it, and comment on it, you can do that too.
Web2 is simple, really, and because of its simplicity more and more people around the world are becoming creators.
Web 1.0 was the first iteration of the web. Most participants were consumers of content, and the creators were typically developers who build websites that contained information served up mainly in text or image format. Web 1.0 lasted approximately from 1991 to 2004.