Window was the WWIIUKcodename for a system called "chaff", intended to confuse Germanradar. Devised for the USAF by the American scientist Fred Whipple (according to Harvard Gazette Archives), it consists of huge volumes of aluminium foil strips cut to a length corresponding to the radar wavelength which were dropped from aircraft so producing huge numbers of spurious echoes. Other radar confusing techniques included Mandrel, Piperack and Jostle.
Window shade, a shade or blind for a window; usually, one that is hung on a roller.
Window is also used metaphorically to refer to a time period during which something can occur and outside of which the thing cannot occur, as in a window of opportunity to launch a rocket to the moon on the most efficient trajectory.
Later, two types of windows were invented that allowed light but not weather to pass into a building: mullioned glass windows, which joined multiple small pieces of glass with leading, and paper windows.
Windows tried to auto detect which mode to run in, although it could be forced to run in a specific mode using the switches: /r (real), /s (standard) and /3 (386) respectively.
Windows NT 3.1 (Microsoft marketing desired to make Windows NT appear to be a continuation of Windows 3.1) arrived in Beta form to developers at the July 1992 Professional Developers Conference in San Francisco.
Windows Me was conceived as a quick one-year project that served as a stopgap release between Windows 98 and the upcoming Windows XP due to the cancellation of the home consumer edition of Windows 2000.