EDSAC

EDSAC, or Electronic Delay Storage Automatic Computer, was one of the earliest computers built at the University of Cambridge in the United Kingdom. It became operational in 1949 and is notable for being one of the first computers to store programs in memory, a key aspect of the von Neumann architecture. The EDSAC was designed by a team led by Maurice Wilkes and was based on the use of mercury delay lines for storage.