Harvard Mark III magnetic head

Prev
Next
Image Zoom
  • Details
  • Description
Date Introduced
1949 ca.
Photographer
Richards, Mark
Dimensions
overall: 1/2 in x 4 1/2 in x 4 in
Manufacturer
Harvard University. Computation Laboratory
Credit Line
Gift of Gerald W. LaVigne
Copyright Owner
© Mark Richards
Object ID
102682073

The Harvard Mark III used magnetic drums to store 16-digit decimal numbers as well as program instructions. But unlike most modern computers, the memories for data and instructions were separate—a design now called the “Harvard architecture."