Exhibits At the Museum

This Day in History

Today: October 24, 2014

June 20, 1950

NBS Dedicates SEAC Machine

The National Bureau of Standards dedicated the SEAC (Standards Eastern Automatic Computer) in Washington as a laboratory for testing components and systems for setting computer standards. The SEAC was the first computer to use all-diode logic, a technology more reliable than vacuum tubes, and was the first stored-program computer completed in the United States. Magnetic tape in the external storage units stored programming information, coded subroutines, numerical data, and output.