Blockchain Technology: Overview and History of Blockchain

Blockchain is a digital technology used to record and share information across many computers. It connects records in blocks and uses cryptography to help protect information from changes. This report explains the meaning and history of Blockchain Technology, its main components, and the differences between blockchain and traditional databases. It also compares Public Blockchain, Private Blockchain, and Consortium Blockchain. Finally, it describes real-world blockchain applications, including Bitcoin, IBM Food Trust, Decentralized Finance (DeFi), Digital Identity, and Healthcare. The purpose of this report is to explain blockchain in simple words and show how it can be used in real life.

19 Oct 2026 1 114