keyern.
/ˈkiːə/, U.S. /ˈkiər/ 1. Electronics. A device for rapidly switching a signal on and off; cf. key v. 8a. Also: a hand-held device with keys or on–off switches that a person can operate with the fingers. Frequently with modifying word.
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the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > on or off device
keyer1929
1929 Brit. Patent 348,858 2/1 Figure 1 is a wiring diagram of an improved tone keyer.
1965 L. E. Foster Telemetry Syst. iv. 195 The signals are passed through a keyer which converts them from varying-amplitude to constant-amplitude signals of varying pulse width, or pulse duration.
1967 Electronics 6 Mar. 346/2 (advt.) Electronic musical instrument engineer. Should have knowledge of transistor and diode keyer, wave shapers, [etc.].
2004 H. W. Silver Ham Radio for Dummies ix. 139 The simplest electronic keyers only make strings of dits and dahs and the operator puts them together with the right timing.
2008 J. Watkinson Art Digital Video v. 244 A digital keyer will perform the same functions using logic circuits.
2. A person who operates the keyboard of a computer, etc.; = keyboarder n. 1.
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society > communication > printing > typing > typist > [noun] > enters data into computer by keyboard
keyer1969
keystroker1970
keyboarder1971
1969 Industry Wage Surv.: Electric & Gas Utilities Oct.–Dec. 1967 (U.S. Bureau Labor Statistics) 117/2 Data entry keyer... Operates keyboard-controlled data entry device.
1987 T. Forester High-tech Society (1989) v. 162 Blue Cross/Blue Shield of South Carolina..has 30 or so ‘cottage coders and keyers’ who process medical claims at home outside of normal working hours.
2007 J. Mannion Everything Guide Govt. Jobs xiii. 189 Data-entry keyers input lists, numbers, and other information.
This entry has been updated (OED Third Edition, December 2012; most recently modified version published online March 2022).
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n.1929