IBM 7070
The IBM 7070 was a data processing computer of IBM, which was introduced by IBM in June 1960. The 7070 series was the first transistor-based, programmable computer of the 700/7000 series of IBM.
The 7070 was developed as a successor to the transistorized IBM 650, while the drum memory of the 650 with much faster core memory was replaced. The 7070 was not instruction compatible to the 650, which had the opportunity to also be specified for each command and a jump address for the optimal use of the drum store, which would have been unnecessary and wasteful for a computer random access core memory. Therefore, an emulator was needed to run old programs.
The 7070 was marketed as a replacement for the IBM 705. The case occurred serious incompatibilities, including the impossibility of the character set of 705 fully map, forced the IBM, the IBM 7080 to develop as fully compatible " transistorized IBM 705 ".
The data format used consisted of words of 10 decimal digits plus sign. The numbers were stored in two of five code. The core size of the delivered machines could be 5000-9990 words. The computing speed of the CPU was 27 kips. The monthly rent of a typically equipped system was 17,400 U.S. dollars, the purchase price of 813,000 U.S. dollars.
Later in this series were presented computer IBM 7072, introduced in November 1962 and the IBM 7074 ( November 1961 ), one of which is on display in the Deutsches Museum Munich today.
Successor was the System/360, which was introduced by IBM in 1964.