the.com/widget

the placeholder noun economists invented so they wouldn't have to admit they made nothing

means A widget is a generic, unnamed small device or component — a stand-in for any manufactured gadget — and, in software, a small interactive element on a screen.

from A 20th-century American coinage, probably a playful alteration of 'gadget' (perhaps nudged by 'which-it'). It surfaced as a catch-all factory product in the 1920s play 'Beggar on Horseback' and became economists' favorite imaginary commodity. The computing sense — toolbar buttons, sliders, desktop gizmos — arrived much later, borrowing the same 'small useful thing' flavor.

origin
Coined in a 1924 play about manufacturing nothing specific
econ class
The default product when professors avoid real examples
GUI life
Lives twice: in factories and on your screen
meaning
Defined entirely by being undefined
for instance

apple watch — apple's wearable device, over 100 million sold since 2015

fitbit — wearable fitness tracker by google, dominant in health monitoring market

dashboard widget — macos/ios small apps showing weather, stocks, or calendar on home screen

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