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IBM 650
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650 Reference room
650 Chronology
A brief history of the 650
650 Feeds & speeds
Facts, figures and features
650 Components
The components & associated equipment of a 650 installation
650 Customers
A representative listing of 650 installations
650 Applications
How the 650 was used
Basic information sources:
Magnetic Drum
Data Processing Machine announcement press release; July 14, 1953
IBM 650 Technical fact sheet;
July 20, 1955
650 RAMAC announcement
press release; Sept. 14, 1956
650 RAMAC fact sheet;
Sept. 14, 1956
IBM 650 Magnetic Drum
Data Processing Machine applications press release; July 31, 1958
IBM 650 Model 4 announcement
press release; June 18, 1959
650 RAMAC fact sheet;
ca. 1959
650 Photo album
Views of the 650 & its components