Bitcoin is the first Cryptocurrency as well as the first blockchain implementation in the world. To work with Bitcoin, we need to create a Bitcoin Account. The simple way is digital wallet. During creating an account the user is provided with bitcoin private and public key pair. In which public is visible to all i.e the visible ID of the user.
Private key is the access key of the users account. If a person loses his private key he loses access to his account and his money.
There are a number of online bitcoin exchanges which exchange normal currency to bitcoin. People can exchange their normal currency for bitcoin and move it to their wallet. The wallet app will provide an interface where we can input the account Id of the recipient and the amount we wish to transfer. In Bitcoin, the transactions are cost-free. Usually, a transaction validation time is about 10 minutes in bitcoin, but if we give a small transaction fee we can speed up the process.