The ALWAC III-E was an early commercial vacuum-tube computer employing a rotating magnetic drum main storage unit, operational in 1955. It weighed about 2,200 pounds.
Wegematic 1000
In 1960 Wenner-Gren Centre Foundation donated a Wegematic 1000 (based on ALWAC III-E) computer to the University of Turku in Turku, Finland. ==Further reading==