View source for BCI2000 Glossary

==Modules==
BCI2000 ''always'' runs 4 executables, called modules. The first is ''always'' the Operator module. The other 3 ''must be'' one each of a Signal Source module, a Signal Processing module, and an Application module.
[[File:Modules.png|center|500px]]
#'''Signal Source''': The module that acquires the data. This connects to the hardware, buffers the data, saves it to the data file and sends it to the signal processing module.
#'''Signal Processing''': Conducts any signal processing on the raw data and transmits it to the application module.
#'''Application''': Runs any task and provides any output to the user, such as stimulation.
#'''Operator''': Provides user interaction and communication between modules. Since this never needs to be changed, new users don't need to worry about this.
This design maximizes modularity. Any module can be swapped out (e.g., changing the task, changing the amplifier) and the rest of the pipeline will stay the same.

Combining these two BCI2000 elements, we are given the following figure:
[[File:ModulesSigStParam.png|center|600px]]