The Nicolet Viasys Viking Select EMG EP System includes a desktop computer loaded with Windows XP, LCD monitor, keyboard, mouse,2-Channel Amplifier, nerve conduction stimulator, stimulator control box, control panel, speaker, and interconnecting cables. VikingSelect Systems Windows XP Professional operating system. It performs the following tests: Electromyography (EMG) Nerve Conduction Studies (NCS) Evoked Potentials (EP) Electroencephalogram (EEG) Test categories: Nerve Conduction Studies (NCS) Electromyography (EMG) Evoked Potentials (EP) Intraoperative Monitoring (IOM) Matrix metalloproteases (MMP)