Just saw this browsing so here's what you might be asking:
If you're looking to just outright buy Bitcoin for cash, then you need to sign up with an exchange that allows buying crypto for fiat (regular money)
I used
Binance when I bought a few hundred Doge for $50 (just in case it became the next BTC)
As for mining at home? Can be done but dont expect to make mad cash/crypto. First, you'll need a video card capable of it. Nvidia's GeForce 3090's are popular for the home miner willing to spend $3000 on the video card. If its a LHR card, then its mining ability has been crippled quite a bit. Second, you'll need the software.
BetterHash &
EasyMiner are two of the more "
User Friendly" ones.
Thirdly, you will want a crypto account with an exchange such as Binance or
Coinomi, unless you have a wallet (online or physical).
My old Geforce970GTX is too damn old to mine efficiently. Most I've made in 4 months is $12 BTC. I dont directly mine BTC though. I have it mine easier cryptos like ZCASH. I was mining DOGE for a month but again, too old video card. Made a whole 1 DOGE.
And just a heads up if you try mining at home- Windows 10 dings the software as a "virus" even if its not.
So yes, you
can mine crypto at home, just not bitcoin. You mine other currencies, and have it converted.