Historical Marker
Schaeffer Hall
Historical marker location:
20 East Washington Street, Iowa City, Iowa
( Marker can be reached from East Washington Street just west of South Clinton Street, on the right when traveling west.)
University of Iowa Sesquicentennial.
The first electronic digital computer was built at Iowa State University in the 1930s. The machine, called the Atanasoff-Berry Computer, was invented by John Atanasoff and his graduate student, Clifford Berry.