A cryptocurrency wallet refers to a physical medium, device, service, or application that maintains private and/or public passwords for crypto transactions.| Corporate Finance Institute
Virtual currency is a type of unregulated digital currency. It is not issued or controlled by a central bank. Examples of virtual currencies include Bitcoin| Corporate Finance Institute
Bitcoin is the forerunner of the cryptocurrency market. Operating on blockchain technology, Bitcoin is set to disrupt the currency market. Invented in 2008| Corporate Finance Institute
Altcoin refers to all digital cryptocurrency launched following the success of Bitcoin, hence the name Altcoin, meaning "alternative to Bitcoin".| Corporate Finance Institute