ZTEC Instruments' ZScope 2.0 software runs on a PC and interfaces with the firm's M-Class PCI, PXI, VXI, and LXI modular oscilloscopes. Users can control oscilloscopes during acquisition and can load, view, zoom, and analyze previously saved waveforms while connected or disconnected to an instrument. The software ensures that the same control and waveform computation features common to benchtop units are available on modular oscilloscopes. It has dedicated knobs for changing time per division, volts per division, position, and zoom settings. It also has buttons for starting and stopping the acquisition and for adjusting input settings, acquisition modes, triggering, and waveform measurements. Many functions, including waveform position, trigger level, and location of zoom window can be changed by clicking and dragging with the mouse.