IBM 604
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The IBM 604 was brought onto the market in 1948 by the IBM company and represented a hybrid solution between a tabulation machine and a universal computer . The system was in the transition phase between the tabulation machines and the mainframe computers , such as the IBM 701 introduced in 1953 .
The machine was a programmable tabulating machine and was technically based on the IBM 603. The IBM 604 mastered fixed-point number arithmetic. The basic arithmetic operations were implemented by the system with dual-coded decimal digits . At the beginning 40 program steps could be programmed, later 60 program steps. Punch cards were used in the machine . In 1954, a transistor- based variant of the IBM 604 was introduced that was not for sale .
The American Computer Museum in Bozeman , Montana (USA) has an IBM 604.
Web links
- IBM 604 (IBM Archive)
- Operating instructions for the IBM 604 (PDF; 10.7 MB)
- IBM 604 (Columbia University)
- IBM 604 (University of Amsterdam)