As the first cryptocurrency (there are now many others including Ethereum, Litecoin etc), Bitcoin remains the most popular and widely used. Bitcoin uses free open-source, peer-to-peer technology to allow instant worldwide payments at a very low cost. This virtual currency also enables anonymous online payments.
There are several ways to make use of Bitcoin cryptocurrency. The easiest perhaps is using cash at a Bitcoin ATM. Bitcoin ATMs are springing up everywhere. A Bitcoin ATM allows the user to connect directly to a Bitcoin exchange, allowing for the sale and purchase of Bitcoin with cash.
If you are attempting to purchase something with Bitcoin using a Bitcoin ATM, you are essentially buying Bitcoin (in that you are using cash to buy Bitcoin which is then received in Bitcoin by the person who is selling to you and who you are purchasing from). If you are using a Bitcoin ATM, you do not need a Bitcoin wallet. It’s just like a normal cash transaction.