Blockchain and Cryptocurrencies
Blockchain is the underlying technology that makes cryptocurrencies possible. It is a distributed, decentralized database that securely, transparently, and immutably records all transactions.
Cryptocurrencies, such as Bitcoin or Ethereum, are digital assets that use blockchain to record and verify their transactions. This system eliminates the need for intermediaries like banks, as transactions are validated by a network of nodes (computers) using a consensus mechanism to ensure reliability.