Friden STW-10 Video

This is a video clip of the Friden STW-10 electromechanical calculator performing a number of math operations, including addition, subtraction, multiplication, and division. The video is approximately 51 seconds in length, and is in MPEG2 format with audio, compatible with Microsoft Windows Media Player, as well as most other video playback software. The total length of the file is approximately 4.4 Megabytes.

The video shows the readout registers of the machine as it performs the following operations:
CLR 12345 + + + + + - - - - - - CLR 1234 X 1234 12345 ÷ 167