Eckert and Mauchly were American engineers and computer scientists known for developing the first general-purpose electronic computer, the ENIAC. Completed in 1945, the ENIAC was a groundbreaking machine that could perform a wide range of calculations much faster than previous mechanical computers. The duo co-founded Eckert-Mauchly Computer Corporation in 1946, where they continued to innovate in computing technology. Their work laid the foundation for modern computing, influencing future developments in hardware and software design. Their contributions are recognized as pivotal in the evolution of computers and the field of computer science.