Definition of "calculator"

calculator

/ˈkæl.kjə.leɪ.tə(ɹ)/

noun
plural calculators
1. A mechanical or electronic device that performs mathematical calculations.
2. (dated) A person who performs mathematical calculation.
  Quotations
  First, many real-world investors bear little resemblance to the cool calculators of efficient-market theory: they're all too subject to herd behavior, to bouts of irrational exuberance and unwarranted panic.
  2020, Paul Krugman, Arguing with Zombies: Economics, Politics, and the Fight for a Better Future, page 145
3. A person who calculates (in the sense of scheming).
  Quotations
  Talk not thus, I implore you, Evelyn: do not imagine me the worldly calculator that my enemies deem me.
  1838, [Edward Bulwer-Lytton], chapter X, in Alice or The Mysteries […], volume I, London: Saunders and Otley, […], book I, page 92
  You have in the merchant the shrewd calculator of probable contingencies; we shall see that we have in the prophet the absolute proclaimer of necessary and inevitable facts.
  1858, John Cumming, Thy Word is Truth: an apology for Christianity, page 112
4. (obsolete) A set of mathematical tables.