The Pound Sterling is the official currency of the United Kingdom, 9 British territories, Jersey, Guernsey, and the Isle of Man. The pound is made up of 100 pennies and coins are issued in denominations of 1p, 2p, 5p, 10p, 20p, 50p, £1, £2 and £5. Banknotes are available in £5, £10, £20 and £50. Established in the 5th century, the pound sterling is the oldest currency in the world that is still used today.
Introduced in 2009, Bitcoin is an online, digital currency which doesn’t have a central bank or ownership and is often referred to as a peer-to-peer payment system. Bitcoins are generated through a process known as "mining." This involves using specific software to solve maths problems. When a maths problem is solved, the "miner" is rewarded with a Bitcoin. These Bitcoins can then be exchanged for goods and services. Although the number of companies who accept Bitcoins is currently limited, as the currency becomes more well known the number is growing. Bitcoins can also be bought using other currencies. Bitcoin is also a "crypto-currency" which means it uses cryptography to drive the production of Bitcoins and Bitcoin transactions. This makes the currency extremely secure. The "block chain," which is effectively a public book of accounts, is used to check that genuine Bitcoins are being exchanged in all transactions. Bitcoin benefits from no limits of exchange as users can perform instant transactions at an