About Forex

To buy foreign goods or services, or to invest in other countries, companies and individuals may need to first buy the currency of the country with which they are doing business. Generally, exporters prefer to be paid in their country's currency or in U.S. dollars, which are accepted all over the world.
The foreign exchange market, or the "FX" market, is where the buying and selling of different currencies takes place. The price of one currency in terms of another is called an exchange rate.