Digital Coins refer to a type of cryptocurrency that uses encryption techniques to secure transactions, control the creation of new units and verify the transfer of assets. These digital currencies operate on decentralized networks based on blockchain technology, which is essentially an online ledger that records all transactions in a secure manner. Some popular examples of digital coins include Bitcoin, Ethereum, Ripple, Litecoin among others. They are also known as cryptocurrencies or virtual currencies and can be used for various purposes such as online purchases, investments, remittances, etc.