My brother, Bitcoin in a digital currency. So, you need to open a wallet which will be like your bank account. You can open a wallet in Bitcoin Block Explorer – Blockchain and you will be given a username after registration.
Your username will contain a string of letters and numbers which you will have to keep safe some-where because, without it, you woun’t be able to login forever.
After doing that, you will have to buy your bitcoins from sites such as LocalBitcoins and buy bitcoins for the amount which you can afford and you will provide them with your bitcoin wallet address which is made up of a string of letters and numbers.
After buying your coins, you can decide to either leave it in your wallet and sell it when the price is high, or you can decide to invest it in HYIP’s.
If you need more explanation, just indicate