The IBM System/360 Model 91: Some Remarks on System Development
Michael J. Flynn, Peter Löw · IBM Journal of Research and Development · 1967
The primary goal of the System/360 Model 91 development program was to produce the highest performance capability that advanced design philosophy and extensions of System/360 circuit technology could achieve, within a balanced development schedule. “Performance,” as used here, means general computer availability and high-speed execution of general problem programs.