Relative Effects of Central Processor and Input-Output Speeds Upon Throughput on the Large Computer Presented in this paper is a technique for determining the relative effects of the internal speed of the computer and the speed of the input-output units upon the overall speed of the system. Equations are derived which permit the determination of these effects from hardware usage measurements. CACM December, 1964 White, P. CA641208 JB March 9, 1978 3:34 PM 963 5 963 963 5 963 963 5 963 1653 5 963 963 6 963 1069 6 963 1417 6 963