controller
/kənˈtɹəʊlə/ · con·trol·ler
noun
- A person who exercises authority or direction over something. The controller of the project ensured that every deadline was met.
- An electric or mechanical device used to regulate the operation of a circuit or system. She adjusted the game controller to change the character’s speed.
- A senior financial officer who audits and manages the fiscal affairs of an organization, often synonymous with comptroller. The company's controller presented the quarterly financial statements to the board.
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Did you know? The term 'controller' was first used in accounting in the 19th century, but its electronic sense only emerged with the advent of video game consoles in the 1970s.