The Soroban is a traditional Japanese abacus used for arithmetic calculations. It consists of a rectangular frame with rods, each containing beads that can be moved up and down. The Soroban typically has a unique arrangement of beads, with one bead above the horizontal bar representing five units and four beads below representing one unit each. This tool is widely used in Japan for teaching mathematics and enhancing mental calculation skills. The Soroban helps users visualize numbers and perform operations like addition, subtraction, multiplication, and division efficiently. Its simplicity and effectiveness make it a valuable educational resource.