A general biomedical signal data-sampling system was developed and used in teaching experiments of physiology and electrophysiology. This system possesses functions. such as multichannel data-sampling, refreshing display of curves, parameter measurement and calculation, signal processing, data saving, and playback and printing-out. Recording of multichannel physiology signals without pen was achieved. Description of system hardware and software design were given in this paper, and results of part of experim...