Abstract: A device for measurement and signal generation having multiple different test and measurement applications and an application selector to choose which application is currently active, the device having a graphical screen selector and an input mechanism to enable application selection. The applications use a graphical display of measurement data or input parameters, and each application uses available measurement hardware for different measurement functions to reduce the need for several individual measurement devices. Various test and measurement applications are provided for any specific type of measurement or signal generation. They will typically measure or generate signals in various test and measurement domains, such as high precision multi-meter type measurements, industrial control, signal generator application, audio, communication, device characterization, data logging, etc.