Interfacing the brain and computers from the set of sensors and components, signal processing can be formed that the activity of the brain of the person directly to a series of communication signals, or control become available. In this system, you must first brain waves with the use of devices to record brain waves recorded, usually because of accuracy, when high and being cheap, and also easy-to-use, from electroencephalography to record brain waves can be used. Electrodes the EEG at the scalp level fall and the electric field resulting from the activity of neurons measured. At a later stage, these waves are investigated and the features desired to be mined, and on these features can be guessed that the user, what the activity intends. In this article, this system and the progress of that so far on this system. has been studied. It's a place that still has the speed and accuracy of these systems to acceptable yet. not yet commercially entered the market yet, but it's where this system, new method for communicating, especially for people who are physically disabled are provided. groups to research a lot on this system to work and hope that in the near future in order to system that high speed and accuracy.