Hands-On Cybersecurity with Blockchain
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Internet versus blockchain

The internet is a more-than-30-year-old technology with the purpose of sharing information over TCP/IP and the Open Systems Interconnection (OSI) model stack. From the birth of the internet, every new technology had disrupted an existing one, whether it was email or the web, or even e-commerce. The internet is one of the strongest technologies and has been powerful enough to spread out ideas to impact and create illusions for reality.

TCP/IP was the first internet protocol suite built to standardize communication between similar networks; however, the OSI model was developed by the International Standard Organization (ISO) to provide a framework to standardize communication between systems, irrespective of vendors, models, and technologies. Organizations preferred both models for client/server communication because client/server networks tend to be much more reliable and stable in nature. It was important to have better control over what data customers were using and how they were using it. In a client/server model, a client manages their own local resources, such as the hardware and software components of a workstation or any device, whereas a server is a powerful system that manages shared resources such as hardware, network communication channels, and databases. With a peer-to-peer network, there is no central authority to monitor, control, and enforce. Although small businesses used to prefer this for their internal needs, big organizations have always shied away from peer-to-peer networks because of the risk of losing control over their business operations and management.

However, there are a few moments in this journey of connecting worlds that redefined innovation and facilitated mediums for every business's needs. It was blockchain, a peer-to-peer network of independent nodes to share any kind of value without any third-party involvement. The evolution of computing first started with mainframe computing, and, after a decade, the internet came into existence. Cloud computing was generally defined by Professor Ramnath Chellappa in 1997, and Amazon launched its Elastic Compute Cloud (EC2) service in 2006. We are now in the era of a new breed of computing that has changed the way data is stored safely and securely. Take a look at the following diagram: