Hello @sammylinks, I read through your post and I must commend your effort to put down this post but I want to call your attention to a few thing.
first
An exchange is not a transaction, it is a "marketplace/market/platform".
Second
This is from your post but i found similar content from https://en.wikipedia.org/wiki/Cryptocurrency_exchange
similar content
Third
Another content of your with similar content here
similar content
fourth
You got most of your content by spinning bitdegree.org, it is visible with the spaces between words in a sentence and sentence placing.
Remark
Copy/Pasting or Spinning isn't a good way to create good contents and I must say that it is better to spend an entire day to create an original content than to spend a few hours or minutes to create a plagiarized content. Plagiarism is a criminal offence when it comes to copywriting and never forget to give credit to original authors where credit is due, it is a golden rule for writers.
Cheers my friend.
Cryptocurrency exchange
A cryptocurrency exchange, or a digital currency exchange (DCE), is a business that allows customers to trade cryptocurrencies or digital currencies for other assets, such as conventional fiat money or other digital currencies. Exchanges may accept credit card payments, wire transfers or other forms of payment in exchange for digital currencies or cryptocurrencies. A cryptocurrency exchange can be a market maker that typically takes the bid–ask spreads as a transaction commission for is service or, as a matching platform, simply charges fees.
Some brokerages which also focus on other assets such as stocks, like Robinhood and eToro, let users purchase but not withdraw cryptocurrencies to cryptocurrency wallets.