To make it simple, the forex brokers have the role to make the link between the trader and the forex market. Concretely, they are in the form of software that you download on your computer or that you access online. It is with the latter that you spend your trading orders.
At a forex broker you have, in general, the possibility to open a trading account in real money or play money using a demo account. When you trade real money, the broker takes note of your orders and applies them instantly, or nearly so, by investing your money through large international banks. When you give the order to your broker to close your position, you’ll recover at this time your capital will be enriched by profits or depleted by losses and therefore reduced.