omputer) The first electronic computer that executed an internally stored program. Created by the U.S. National Bureau of Standards (see NIST
), SEAC was placed into operation in 1950. Using solid-state diodes for logic, SEAC was an arithmetic-only device with 512 45-bit words of delay line memory.
Based on the EDVAC
SEAC was based on the Electronic Discrete Variable Automatic Computer (EDVAC), the successor to the ENIAC. Although EDVAC was also a stored program computer, it became operational after SEAC. See EDVAC
, early memory
and early computers