A specific language is used in order to specify the transactions that are done using bitcoins. They are forth like scripting language.  Each transaction may have one or more input which results in one or more outputs. When a person wishes to make a transaction with bitcoin, the sender will designate the amount of bitcoin that will be sent along with the address of the receiver.

The sender end is the input and the receiver end is the output here. In order to avoid double spending in the process, the sender should always refer to the unspent output that will be present blockchain. When there are multiple inputs, it signifies the use of multiple coins in that transaction. Even having multiple recipients is possible as the transaction can have more than one output. This can be done by adding more recipients to the transaction. When coins are used to pay, the sum of inputs can be greater than the sum of payments that were expected.

During such instances, an additional output is added to the transaction which will help in returning the change to the sender. The senders are also known as miners as far as bitcoins are considered as they are rewarded for mining. Transaction fee is optional in this place. People can choose to pay the transaction fee or not depending upon which transaction they want to prioritize. The transaction fee is paid in relation to the storage size that is occupied and not by the amount of money.

The number of inputs and the number of outputs decide the size of the transaction that takes place. Free bitcoin wallet is a place where information that is necessary for a transaction using bitcoins is stored.  These wallets are used to provide access to use the bitcoins when necessary. The digital credentials of any bitcoin holdings are placed in the wallet. These wallets are also a space where the public and the private keys of a bitcoin are stored. Wallets can also be operated using different modes. Full client mode downloads the whole copy of the blockchain while lightweight client mode just sends and receives the information without the need for storing the data in a local area.