I am not clear about altcoin system. I actually want to know about altcoin. I am new in digital currency market. So I want to know more about digital currency.
Nice to have you in the cryptocurrency world.
An altcoin is any digital cryptocurrency similar to Bitcoin. The term is said to stand for alternative to Bitcoin and is used describe any cryptocurrency that is not a Bitcoin. Altcoins are created by diverging from Bitcoin consensus rules (the fundamental rules of the cryptocurrencys network) or by developing a new cryptocurrency from scratch.
Source:
https://whatis.techtarget.com/definition/altcoin