A currency exchange device accepts larger denomination banknotes and dispenses an equivalent value in smaller denominations. For instance, a customer might insert a $20 bill and receive twenty $1 bills in return. These devices are often found in settings where smaller bills are frequently needed, such as laundromats, casinos, and small businesses.
The availability of smaller denominations facilitates everyday transactions and can be particularly beneficial in environments where exact change is required. Historically, the need for readily available change arose with the increasing use of vending machines and automated services. This spurred the development of these exchange mechanisms to streamline commercial activities and improve customer convenience. The evolution of these devices has led to increased security measures and more sophisticated dispensing mechanisms.