An evaluation of the East German RYAD 1040 system
Robert A. Koenig · 1976
In the early 1970's, several East European countries and the USSR developed a compatible computer family called the Unified System, or RYAD. In 1975, Control Data purchased the ES-1040, a member of the RYAD family for testing and evaluation. Performance and compatibility tests were made and the technology was assessed. Tests determined that the ES-1040 is compatible with IBM 360 instruction set. Benchmark programs show the ES-1040 to be twice as powerful as the IBM 370/145 in scientific/engineering applications, and at least as powerful in BDP work. The processor, using TTL IC's lags the U.S. by three years, the core memory shows a lag of about eight years, while peripheral equipment is eight to ten years behind the U.S.