The greatest number of those sold and installed were for mundane business data processing. By the mid-60s every medium and large business needed a computer. The

The greatest number of those sold and installed were for mundane business data processing. By the mid-60s every medium and large business needed a computer. The slowest 360, the model 30, would have had trouble competing with a Z80 of 20 years later. However, the 360/91 was genuinely a supercomputer, and it pioneered out-of-order execution among other performance features. https://en.wikipedia.org/wiki/IBM_System/360_Model_91 https://en.wikipedia.org/wiki/IBM_System/360_Model_91 https://en.wikipedia.org/wiki/IBM_System/360 https://en.wikipedia.org/wiki/IBM_System/360