computator
/ˈkɒmpjʊteɪtə/noun
1A person skilled in calculation or computation; = computer. Now chiefly historical.
2A device or machine for performing or facilitating calculation; a calculating machine.
Origin
Late 16th century; earliest use found in Richard Percyvall (c1558–1620), administrator and lexicographer. From classical Latin computātor calculator, accountant, in post-classical Latin also counting-board from computāt-, past participial stem of computāre + -or.