Wait a second: How did I not know that before the internet, 'online' actually meant 'offline'?

"The term 'online' originally meant 'immediately available on a computer," Chen wrote, explaining why Windows 3.0 (which was ...
insider.si.edu

Mainframe Computer Peripheral, Light Gun for the IBM SAGE (AN/FSQ-7)

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This light-sensing pointing device, ...