Now in this Blockchain Technology tutorial, let’s study the Blockchain architecture by understanding its various components:
What is a Block?

A Blockchain is a chain of blocks which contain information. The data which is stored inside a block depends on the type of blockchain.
For Example, A Bitcoin Block contains information about the Sender, Receiver, number of bitcoins to be transferred.

The first block in the chain is called the Genesis block. Each new block in the chain is linked to the previous block.