IBM 604

The IBM 604 was launched in 1948 by the company IBM to market and introduced a hybrid solution between a tabulating machine and a general purpose computer system was Represents the time in the transition phase between the tabulating machines and mainframes such as the IBM 701, introduced in 1953

The machine was a programmable tabulating and built on technically on the IBM 603. The IBM 604 dominated fixed-point number arithmetic. The basic arithmetic operations were implemented with dual -coded decimal digits by the system. At the beginning of 40 program steps could be programmed, then later 60 program steps. In the machine punched cards were used. In 1954, a non- specific for sale based on transistors variant of the IBM 604 was presented.

The American Computer Museum in Bozeman, Montana ( USA) has an IBM 604