The first computer was invented in the early 1940s. The specific date and origin of the first computer are subjects of debate, as several early computing machines were developed around the same time. One notable example is the Electronic Numerical Integrator and Computer (ENIAC), which was completed in 1945 and is often recognized as one of the first general-purpose electronic digital computers. However, other early computers, such as the Atanasoff-Berry Computer (ABC) and the Colossus, also played significant roles in the development of computing during this period.