Payments have evolved significantly over time. In ancient times, people used the barter system to exchange goods. This system was replaced by using goods like cocoa beans, salt, cowry shells, and beads as currency. Eventually, societies moved to coins, and in China, paper notes were introduced.
These forms of currency dominated for centuries until the advent of plastic money, such as debit and credit cards. With the rise of the internet, online payments and e-commerce emerged, followed by digital wallets. The most recent advancement is Unified Payments Interface (UPI), which allows for instant payments with just a smartphone, and technologies like NFC (Near Field Communication) and RFID (Radio Frequency Identification) have further enhanced payment convenience.