The client terminal refers to the part of the program that the client or receiving traders will use. It is provided by the brokers they have chosen, and is used as real time trading or as a demo version in which clients can practice their trades with. Basically, it comes with trade operations, charts, as well as analyses in real time. With the MQL, a programming language for the platform, these can be updated by the brokers so that clients can enjoy customized items when they use expert advisors. There are 50 indicators provided in which helps pinpoint crucial data to you. These indicators can nevertheless be customized so that you can choose the particular data you are interested in attaining.
Another component is the MT4 mobile, which allows users to use their accounts via mobile phones or laptops. The server component would refer to the place where all requests are sent and handled for trade operations. This is where you will receive your data from and where your data will be sent to for trading, as well as keep your trade records. This is controlled by the administrator, the one who manages its settings. There is also the MT4 manager that handles the inquiries customers bring forth, and would help them manage their accounts. The last component would be the data center, which acts between the server and the client terminals, so that there is no overload in the main server.