IBM System/360 Model 91

It is specifically designed to handle ultra-high-speed data processing for scientific applications such as space exploration, theoretical astromony, sub-atomic physics and global weather forecasting. The Model 91's immense computing power results from a combination of several key factors, including: 1.Advanced circuits that switch in billionths of a second; 2.High-density circuit packaging techniques; and 3.A high degree of concurrency, or parallel operations.