We all know the buzzword Big Data very well. Currently, there is a massive amount of information stored on digital media, which, as you can imagine, takes up a lot of space, consumes a lot of resources, and most importantly, is centralized. Now, let's recall how nodes work and how a blockchain is structured. We all know this, right?
In a nutshell, blockchain is a decentralized database. When we install a node, it begins to store a portion of this database (blockchain) on our computer/server (depending on where it's installed). Consequently, a network of different nodes is created, which are interconnected and communicate with each other, with each node storing a specific portion of the blockchain information.
What does this achieve? Let's break it down.
Currently, we'll delve into history and recall how the Internet has evolved.
Web 1.0 - This was the first version of the Internet, which developed in the 1970s-1980s. Websites then were very primitive and non-interactive. Web 1.0 can be likened to a global library or a large newspaper. When we go to a library, we can't read everything, and our choices are limited to the books available in the library. All the information on the Internet was added by specific individuals and web developers.
Web 2.0 - This emerged in the late 1990s and early 2000s and remains relevant today. It introduced more complex and functional websites, social networks, user-generated content, and interactive websites. Its distinction from Web 1.0 lies in the advent of social media. Social media allowed content to be posted not only by webmasters and site owners but also by regular network users. The servers that store our data belong to someone - companies and individuals. Consequently, we depend on people/companies and must adhere to their rules.
So, if YouTube prohibits publishing content about Covid vaccination, then a person who posts something similar gets banned and can no longer use the platform.
Yes, in Web 2.0, data is stored centrally, meaning there's a single management authority that limits users' freedom of expression, the posting of information on the internet, and so on.
Sure, let's delve into what Web 3.0 is and what future awaits us.
Web 3.0 is an Internet that operates not on individual servers located in specific places and owned by specific individuals or companies, but rather on separate nodes (yes, those nodes you were thinking of) and on devices of each user. This operates using blockchain technology.
Examples and comparisons: