Decentralization:

There is no bank or entity that controls Bitcoin. The network is operated by thousands of computers around the world (known as Nodes).

2. Blockchain:

It is a public database that records all transactions. Each "block" contains a number of transactions and is linked to the previous block, forming a chain.

3. Mining:

A process carried out by "miners" using powerful computers to solve complex mathematical problems. When a miner succeeds, a new block is added to the network and rewarded with new Bitcoin.