What is Cryptocurrency?
A cryptocurrency (or “crypto”) is a form of payment that can circulate without the need for a central monetary authority such as a government or bank. Instead, cryptocurrencies are created using cryptographic techniques that enable people to buy, sell or trade them securely.
Cryptocurrencies can be exchanged for goods and services, though they often are used as investment vehicles. Cryptocurrency is also a key part of the operation of some decentralized financial networks, where digital tokens are an important tool for carrying out transactions.

Why is cryptocurrency the future of finance?

Cryptocurrencies are the first alternative to the traditional banking system and have powerful advantages over previous payment methods and traditional classes of assets. Think of them as Money 2.0. -- a new kind of cash that is native to the internet, which gives it the potential to be the fastest, easiest, cheapest, safest, and most universal way to exchange value that the world has ever seen.
How do I invest in cryptocurrency?

While some cryptocurrencies, including Bitcoin, are available for purchase with U.S. dollars, others require that you pay with bitcoins or another cryptocurrency.
To buy cryptocurrencies, you’ll need a “wallet” — an online app that can hold your currency. Generally, you create an account on an exchange, and then you can transfer real money to buy cryptocurrencies such as Bitcoin or Ethereum.
Some of the popular cryptocurrencies

Bitcoin
As the harbinger of the cryptocurrency era, Bitcoin is still the coin people generally reference when they talk about digital currency. Its mysterious creator — allegedly Satoshi Nakamoto — debuted the currency in 2009 and it’s been on a roller-coaster ride since then. However, it wasn’t until 2017 that the cryptocurrency broke into popular consciousness.

Ethereum
Ethereum — the name for the cryptocurrency platform — is the second name you’re most likely to recognize in the crypto space. The system allows you to use ether (the currency) to perform a number of functions, but the smart contract aspect of Ethereum helps make it a popular currency.

Binance Coin
Binance Coin is the cryptocurrency issued by Binance, among the largest crypto exchanges in the world. While originally created as a token to pay for discounted trades, Binance Coin can now be used for payments as well as purchasing various goods and services.
To know more about everything crypto, head to: https://coinmarketcap.com/all/views/all/