NOTES TO PAGES 251–259 | 507
- There are three known accounts by Babbage of this episode. These date from 1822, 1834, and 1839.
The version quoted is in H. W. Buxton, Memoir of the Life and Labours of the Late Charles Babbage Esq.
F.R.S (ed. A. Hyman), Charles Babbage Institute Reprint Series for the History of Computing, Vol. 13,
Tomash (1988), p. 46. See also B. Collier, The Little Engines That Could’ve: the Calculating Engines of
Charles Babbage, 2nd edn., Garland (1990), pp. 14–18. - The quoted phrase is in D. Lardner, ‘Babbage’s calculating engine’, Edinburgh Review, 59 (1834), 263–
327; reprinted in M. Campbell-Kelly (ed.), The Works of Charles Babbage, Vol. 2, William Pickering
(1989), p. 169. - H. P. Babbage (ed.), Babbage’s Calculating Engines: a Collection of Papers by Henry Prevost Babbage,
Spon (1889); reprinted in an edition edited by A. G. Bromley, Tomash (1982), see Preface. - Buxton (Note 4), pp. 48–9 (emphasis original).
- Lady Byron to Dr King (21 June 1833), in B. A. Toole (ed.), Ada, the Enchantress of Numbers: A Selection
from the Letters of Lord Byron’s Daughter and Her Description of the First Computer, Strawberry Press
(1992), p. 51 (emphasis original). - For images of the three forms of mechanical notation see D. Swade, ‘Automatic computation: Charles
Babbage and computational method’, The Rutherford Journal for the History and Philosophy of Science
and Technology, 3 (2010) (http://www.rutherfordjournal.org/article030106.html). - The Essential Turing, p. 206.
- The first complete Babbage engine to be built was Difference Engine No. 2, designed in 1847–49 and
completed in 2002 at the Science Museum, London. D. Swade, ‘The construction of Charles Babbage’s
Difference Engine No. 2’, IEEE Annals of the History of Computing, 27(3) (2005), 70–88. - A. G. Bromley, ‘The evolution of Babbage’s calculating engines’, Annals of the History of Computing,
4(3) (1982), 113–36. - J. von Neumann, ‘First draft of a report on the EDVAC’, contract no. w-670-ord-4926, Technical
Report, Moore School of Electrical Engineering, University of Pennsylvania (30 June 1945); extracts
reprinted in Randell (1973). - B. Collier (Note 4), p. 139.
- A. Lovelace, ‘Sketch of the Analytical Engine invented by Charles Babbage Esq. By L. F. Menabrea,
of Turin, officer of the Military Engineers, with notes upon the memoir by the translator’, Scientific
Memoirs, 3 (1843), 666–731; reprinted in Campbell-Kelly (ed.) (Note 5), Vol. 3, 89–170. - V. R. Huskey and H. D. Huskey, ‘Lady Lovelace and Charles Babbage’, Annals of the History of
Computing, 2(4) (1980), 299–329. See also J. Fuegi and J. Francis, ‘Lovelace & Babbage and the
Creation of the 1843 “Notes” ’, IEEE Annals of the History of Computing, 25(4) (2003), 16–26; and the
documentary To D r e a m To m o r r o w, directed by J. Fuegi and J. Francis, Flare Productions (2003). - Lovelace (Note 15), p. 118 (emphasis original).
- Lovelace (Note 15), p. 144 (emphasis original).
- Charles Babbage to Ada Lovelace (probably 1 July 1843). Papers of the Noel, Byron, and Lovelace
families, Bodleian Library, shelfmark 168. Quoted in Huskey and Huskey (Note 16), p. 313. - Papers of Charles Babbage (MSS Buxton). Museum of the History of Science, Oxford, MSS 7 (blue,
folio 1). - Lovelace (Note 15), p. 155.
- Two of the accounts appear in MSS 7 (Note 20). A third appears in Scribbling Book S12, 134 (4 May
1869), Science Museum Babbage Archive, digitised archive reference S15_ 0012. - Ada Lovelace to Woronzow Greig (15 November 1844). Papers of the Noel, Byron and Lovelace fami-
lies, Bodleian Library, shelf mark 171. Also in Toole (ed.) (Note 8), pp. 295–6 (emphasis original). - A. Turing to R. Ashby (probably 1946), in D. Yates, Turing’s Legacy: A History of Computing at the
National Physical Laboratory 1945–1995, Science Museum (1997). - A. Lovelace (Note 15), p. 156 (emphasis original). The view about originality is usually attributed to
Lovelace and the version quoted is her own as it appears in Note G. Menabrea wrote that Babbage’s
engine ‘is not a thinking being but simply an automaton which acts according to the laws imposed
upon it’ (Lovelace (Note 15), p. 98). In 1841 Babbage himself wrote that the Analytical Engine ‘cannot
invent. It must derive from human intellect those laws which it puts in force in the developments