Some cryptocurrency exchanges allow you to buy some cryptocurrencies with USD or other fiat currencies depending on your geographic location. Other cryptocurrency exchanges may also require you to pay with Bitcoins or any other cryptocurrency.
One thing that is a must-have to buy cryptocurrencies is a wallet. A crypto wallet is an online application that can store your currency. Most crypto wallets come with all other necessary transactional facilities, such as sending your currency from one wallet to another, receiving from another wallet, etc. If you go through cryptocurrency wallet reviews, you will find two wallet types: hard wallet and soft wallet. We will come to that distinction further below.
Once you have a wallet, you can create an account on an exchange and transfer money to buy cryptocurrencies. Most of the popular cryptocurrency exchanges come with a wallet service.