Editing Ada Lovelace (section)

===Distinction between mechanism and logical structure===
Lovelace recognized the difference between the details of the computing mechanism, as covered in an 1834 article on the Difference Engine,<ref name=edinburgh1834>{{Cite journal|url=https://en.wikisource.org/wiki/Edinburgh_Review/Volume_59/Babbage%27s_Calculating_Engine |last=Lardner|first= D.|title=Babbage's calculating engine|journal= Edinburgh Review|date=July 1834|pages= 263–327|quote= In WikiSource and also reprinted in ''The works of Charles Babbage,'' Vol 2, p.119ff|access-date=11 October 2022}}</ref>
and the logical structure of the Analytical Engine, on which the article she was reviewing dwelt. She noted that different specialists might be required in each area.

<blockquote>The [1834 article] chiefly treats it under its mechanical aspect, entering but slightly into the mathematical principles of which that engine is the representative, but giving, in considerable length, many details of the mechanism and contrivances by means of which it tabulates the various orders of differences. M. Menabrea, on the contrary, exclusively developes the analytical view; taking it for granted that mechanism is able to perform certain processes, but without attempting to explain how; and devoting his whole attention to explanations and illustrations of the manner in which analytical laws can be so arranged and combined as to bring every branch of that vast subject within the grasp of the assumed powers of mechanism. It is obvious that, in the invention of a calculating engine, these two branches of the subject are equally essential fields of investigation... They are indissolubly connected, though so different in their intrinsic nature, that perhaps the same mind might not be likely to prove equally profound or successful in both.<ref name="fourmilab.ch" />{{rp|Note A}}
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