Bitcoin mining is highly complex, needing specialized ASIC hardware. However, numerous other cryptocurrencies can be mined using different methods and algorithms.

Many altcoins employ Proof-of-Work with ASIC-resistant hashing algorithms like Scrypt or Ethash, making GPU or CPU mining viable for coins such as Monero (XMR), Ravencoin (RVN), and Ethereum Classic (ETC), with varying hardware needs and energy consumption.

Bitcoin uses secret codes to control the blockchain transaction. Codes are stored offline in secure hardware wallets.
Hot wallets (software/online) are simple to use but are vulnerable.
Decentralized wallets give you full ownership but need careful key management for trading exchanges. Centralized wallets (exchanges) manage keys for you.

All these make it easier to trade Bitcoin and blockchain by providing you with access to your money.

It will only take 10 to 15 minutes to open your account. The bank will take a few days to fully verify your documents before giving you full access to your account.

One more thing: the waiting period will also depend on the type of account you are opening.