what exactly is a digital currency or cryptocurrency?

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opensource :[Cryptocurrency](https://www.finansialku.com/apa-yang-dimaksud-dengan-cryptocurrency-mata-uang-digital/

What is Cryptocurrency (Digital Currency)

Cryptocurrency existed about ten years ago and has now become quite popular, widespread, and surrounded by controversy over many innovative developments. Quoting from the site Coinmarketcap.com, there are now 904 types of crypto currency and the most famous is Bitcoin. Bitcoin also managed to hoist the price of other crypto currency. Cryptocurrency is a digital currency in which transactions can be done in the network (online). Unlike printed paper currencies, cryptocurrency is designed by solving cryptographic math problems. Digital Currency Cryptocurrency 02 My Finance

##original currency

opensource :understanding of original money
Money is an object or tool that has been accepted and established in general by the public at large in the need of transactions such as, measuring, exchanging, and making payments on goods and services purchased as an effort in meeting the needs of life.