This is a program, that can be used as a long-time oscilloscope in combination with a digital multimeter (e.g. M-3650D) with serial interface (RS-232C, 1200bps). The program runs under DOS. It has minimum system requirements: 286 CPU, 640kB RAM, VGA, optional: mouse. I have written the program in BASIC in 1998.
dmmoszi.zip (52 kB)