The Z3 Computer was an early electromechanical computer designed by German engineer Konrad Zuse in 1941. It was the world's first programmable digital computer, using 2,000 relays to perform calculations. The Z3 could execute complex mathematical operations and was a significant advancement in computing technology. The Z3 operated using a binary system and was programmed with punched tape. Although it was not widely used during its time due to World War II, the Z3 laid the groundwork for future computers and influenced the development of modern computing systems. Its innovative design marked a pivotal moment in computer history.