It is important to know that cryptocurrency exchanges are divided into two categories: centralized and decentralized exchanges; These two exchange models have major differences. for example; In decentralized exchanges, after charging their account, people can easily buy the digital currency they want, and all these processes are done through the system and automatically; But this is not the case in centralized exchange offices, and the process of buying and selling cryptocurrencies is a bit longer, and usually the user's account is directly controlled by the manpower after charging, and the digital currency desired by the people is manually and again by the manpower. Will be purchased.