“Regardless of whether one is dealing with assembly language or compiler language, the number of debugged lines of source code per day is about the same!”

— Fernando J. Corbató

"PL/I as a Tool for System Programming", Datamation, 15 (5), 6 May 1969, pp. 68–76. This has been paraphrased variously by others as Corbató's Law:
Productivity and reliability depend on the length of a program’s text, independent of language level used.
Albert Endres, H. Dieter Rombach, A Handbook of Software and Systems Engineering: Empirical Observations, Laws and Theories (2003), ISBN 0321154207, p. 72
The number of lines of code a programmer can write in a fixed period of time is the same independent of the language used.
[citation needed]

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Fernando J. Corbató11

American computer scientist 1926–2019

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"PL/I as a Tool for System Programming" http://web.archive.org/web/20080206153039/http://home.nycap.rr.com/pflass/PLI/plisprg.html, Datamation, 15 (5), 6 May 1969, pp. 68–76

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