Name the device and give the important events or information happened. From ELECTROMECHANICAL COMPUTER

Answer:
Mark-I is the first electro-mechanical computer developed by Howard Aiken in 1937. In 1942, J.V. Atanasoff and Clifford Berry in 1942 developed Atanasoff-Berry computer. EDVAC was developed by John Mauchlay, John Presper Eckert with the assistance of John Von Neumann in 1952.