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View all- Brown D(1955)Review of Electronic Computer Progress During 1954IRE Transactions on Electronic Computers10.1109/IRETELC.1955.5407954EC-4:1(33-38)Online publication date: Mar-1955
Reliability and its relation to suitability and predictability
Pages 113 - 116
Abstract
Reliability, like a great many other words, means different things to different people. Let me illustrate with a purely imaginary example. Suppose we have a small vacuum tube with amplification, mutual conductance, and plate impedance all of useful magnitudes. Tubes of this type have been made in large quantity. Their characteristics, when measured at the factory have very good uniformity---all are within ±1 per cent of their nominal value. Every tube that has been examined has kept its characteristics within these narrow limits throughout its entire life, and a large fraction of the tubes made have been thus examined. These characteristics are entirely independent of such things as ambient temperature and mechanical shock.
Reference
[1]
fr1 This example and its statistical aspects are discussed more fully in "Statistical methods in the development of apparatus life quality," Trans. AIEE, vol. 64; November 2, 1945. The charts shown here are from that paper.
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Copyright © 1953 ACM.
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- The Institute of Radio Engineers Professional Group on Electronic Computers
- The American Institute of Electrical Engineers Committee on Computing Devices
- ACM: Association for Computing Machinery
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Association for Computing Machinery
New York, NY, United States
Publication History
Published: 08 December 1953
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View all- Brown D(1955)Review of Electronic Computer Progress During 1954IRE Transactions on Electronic Computers10.1109/IRETELC.1955.5407954EC-4:1(33-38)Online publication date: Mar-1955
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