 Currency Exchange
A currency is a unit of exchange, facilitating the transfer of goods and/or
services. It is one form of money, where money is anything that serves as a
medium of exchange, a store of value, and a standard of value. A currency is the
dominant medium of exchange. To facilitate trade between currency zones, there
are exchange rates, which are the prices at which currencies (and the goods and
services of individual currency zones) can be exchanged against each other.
Currencies can be classified as either floating currencies or fixed currencies
based on their exchange rate regime. In common usage, currency sometimes refers
to only paper money, as in coins and currency, but this is misleading. Coins and
paper money are both forms of currency.
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