You created a new threads in the "Beginners & Help" section of the forum and also find the right thread for gaining knowledge. I welcome you to find the right platform related to cryptocurrency. Most of the newbies do not get the right guidance for investing or even a reliable platform. In that regard, you may consider yourself lucky, but I recommend you to read this thread "Newbies - Read before posting" carefully a few times in the forum to learn the necessary knowledge properly.

Before knowing how Bitcoin works, it is necessary to know what Bitcoin is. Bitcoin is a great store of value established as an alternative financial platform for people which works as a decentralized financial system alongside the modern centralized financial system. By saving/investing in Bitcoin, you can make yourself an established holder. You can access the link below to gain extensive knowledge about Bitcoin.

https://bitcoin.org/en/

Cryptocurrencies other than Bitcoin should be called altcoins.