Abstract: A computer-based transient pulse monitoring system and method are described. A general-purpose computer system having a processor, memory, and a digital signal bus for conveying digital signals, also includes a circuit board for measuring certain parameters associated with transient phenomena. The circuit board includes analog circuitry for receiving an analog input signal representing transient phenomena. The analog circuitry continuously measures a characteristic of the transient phenomena and produces an analog output signal representing the measured characteristic. The circuit board also includes a digital interface in communication with the analog circuitry and the digital signal bus. The digital interface converts the analog output signal into a digital signal representing the measured characteristic and transmits the digital signal onto the digital signal bus. The computer system can be connected to a network, such as the Internet.