- 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