1843 Notes

translation and the 1843 Notes. S. Plant, zeros ones Digital W omen the New T echnoculture, Doubleday, 1997. B. Randell, ed., The Origins of Digital Computers, Springer V erlag, 1973. Contains a number of vital historical papers and a lengthy, superbly. annotated bibliography.

Augusta Ada Lovelace worked with Charles Babbage to create a description of Babbage's unbuilt invention, the Analytical Engine, a highly advanced mechanical calculator often considered a forerunner of the electronic calculating computers of the 20th century. Ada Lovelace's

Note G, originally published in Sketch of The Analytical Engine Invented by Charles Babbage. Her notes, along with her translation, were published in 1843. 10 6 7 The program described in Note G was not tested in Lovelace's lifetime, as the analytical engine has never been built. In the modern era, thanks to more readily available

These notes are printed in both Charles Babbage and His Calculating Engines Selected Writings by Charles Babbage and Others, P. Morrison and E. Morrison, eds., Dover Publications, 1961 which includes the full text of the Menabrea translation and the 1843 Notes, pp. 225--297, and in Faster Than Thought, B.V. Bowden, ed., Sir Isaac Pitman

notes to her translation of an article written by Luigi Federico Menabrea after he had heard Babbage present a paper on the Engine. Her transla-tion, together with her extensive notes three times the length of the original article, were published in 1843 and signed A.A.L.2 In the same letter, Babbage recounts the order of the notes in preparation

Ada Lovelace 1815-1852 was an English mathematician who was the first person to realize that computers could be much more than big calculators and published the first complex computer algorithm in 1843. She did this long before any computer existed to execute her algorithm as it was devised for the Analytical Engine which never got built.

Augusta Ada Lovelace worked with Charles Babbage to create a description of Babbage's unbuilt invention, the analytical engine, a highly advanced mechanical calculator often considered a forerunner of the electronic calculating computers of the 20th century. Ada Lovelace's quotnotes,quot describing the analytical engine, published in Taylor's scientific memoirs in 1843, contained a ground-breaking

During the period 1842-1843, Ada worked on this translation and, by adding her own clarifying quotNotesquot to the paper, produced the first succinct treatise on the design and functioning of a modern digital computer. Her quotNotesquot were three times as long as Menabrea's, and remain a classic in the early literature on computers.

A.A. Lovelace, quotNotes by A.A.L.,quot 1843 2 Charles Babbage's Difference Engine and Analytical Engine, conceived in the rst half of the 19th century, are often seen as anticipating key design features used in modern computing, even though none of Babbage's extraordinary devices was fully built in his lifetime. Augusta

Ada Lovelace's quotNotesquot on her translation of Menebrea's paper on Babbage's Analytical Engine were published in Taylor's of Foreign Academies and Learned Societies and from Foreign Journals, edited by Richard Taylor, F.S.A.,Vol III London 1843, Article XXIX. Sketch of the Analytical Engine invented by Charles Babbage Esq. By L. F. Menabrea