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        According to Merriam Webster dictionary, Blockchain can be defined as, "a digital database containing information (such as records of financial transactions) that can be simultaneously used and shared within a large decentralized, publicly accessible network"        In simple words, a Blockchain is a digital book that records monetary transactions that are conducted by people digitally and which is publicly available and is not controlled by one person or organisation.     Why this Technology is called Blockchain?      The word 'Blockchain' is a combination of two words, 'Block' and the 'Chain'. Hence, as the word suggests, it is the chain of blocks or stack of digital information, stored in a database which is public.      The 'Blocks' on the Blockchain consists of three kinds of information:- 1. The first thing the blocks store in them is the informa...

Crypto Currency    According to Merriam-Webster dictionary, " Crypto currency is "any form of currency that only exists digitally, that usually has no central issuing or regulating authority but instead uses a decentralized system to record transactions and manage the issuance of new units,and that relies on cryptography to prevent counterfeiting and fraudulent transaction."