Over 40 systems were sold. Comprising some 5,000 vacuum tubes and weighing nearly eight tons, the memory in the UNIVAC I was made of mercury-filled acoustic delay lines that held 1,000 12-digit ...

For example, in the 1940s and 1950s, the memory in the EDVAC, EDSAC and UNIVAC I was made of tubes of liquid mercury that were several feet long. Electrical pulses were converted to sound and back ...

Einstein’s pipe, for example, is an iconic object because of its association with an eminent scientist. The IAS computer and a model of the UNIVAC I represent milestones in the history of computing.