computatorn.

1591 R. Percyvall Bibliotheca Hispanica Dict. at Contador An accounter, a receiuer of the exchequer, computator, quæstor.

1610 J. Healey tr. J. L. Vives in tr. St. Augustine Citie of God iii. xxxi. 153 Saith Eutropius (who is indeede no good computator).

1635 J. Swan Speculum Mundi vii. §3. 362 As the computatours fail in skill.

1760 L. Sterne Life Tristram Shandy I. xxiii. 166 The intense heat..is proved by computators..to be more than equal to that of red hot iron.

1863 Anthropol. Rev. 1 61 Chronological computators greatly differ, and Desvignoles..has collected above two hundred different calculations.

1904 Science 30 Dec. 907/1 He must..be an adept in scientific method, a first-class mathematician and statistician and a trained calculator and computator.

2003 Libr. Jrnl. Rev. (Nexis) 15 July 133 Chris Roberson's tale of an alternate China in which the Chief Computator pits his skills with an abacus against a foreigner's new invention, the Analytical Engine.

1869 Sci. Amer. 21 Aug. 114/2 The Beauvais clock..contains an ecclesiastical computator with all its indications; the golden number, the epacts, dominical letter; solar cycle, etc.

1906 Biometrika 4 385 As nearly all biometricians now use a Tate, Brunsviga, or other mechanical computator, it was settled that the actual values should be given.

1912 H. G. Wells Marriage iii. ii. 410 The new library at the end, with its greys and greens, its logarithmic computators at every table, was a miracle of mental convenience.

1950 Brit. Jrnl. Sociol. 1 230 Sometimes..hypotheses are formed in the midstream of statistical calculation, in the very act possibly of twiddling a slide-rule or performing at the computator.

2001 N.Y. Times (National ed.) 15 Nov. d6/1 His trade [sc. accountancy] had its own attractions. Chief among them were what he called computators: huge desktop machines that appeared to be the result of crossbreeding mechanical calculators and electric typewriters.