If you are a beginner looking for an introduction to the world of cryptocurrencies, the main features of bitcoin are the decentralised nature of the currency and its network of computers. The technology behind Bitcoin is based on a decentralized network of computers, or blockchain, which is a distributed ledger that allows users to conduct transactions without involving any central point. This means that any information entered into the network will be protected against third-party fraud.
Bitcoins are held in digital wallets, where the user stores their private keys. To prevent counterfeiting, a digital signature, called a public-encryption key, is used to verify transactions.