What is the materials used in Mark 1?

The Mark 1, also known as the Harvard Mark I, was constructed using a combination of materials including metal, wood, and electrical components. The main structure was built from steel and aluminum, while the gears and mechanical parts were made of brass and other metals. The machine also incorporated wooden panels for support and housing various components. Overall, the combination of these materials allowed it to function as one of the early electromechanical computers.