Windows 1.0 InfoWorld 1983-11-21 build

Windows 1.0 "InfoWorld" build is a very early pre-release build of Windows 1.0, originally shown in an article about Microsoft Windows in the 1983-11-21 issue of the InfoWorld magazine. The article mentions that the build was demonstrated for InfoWorld at Microsoft's offices in Bellevue, Washington.

The issue actually features photos of two different builds. One is featured on the cover and in an additional photo in the article itself and looks very similar to the build shown at Fall COMDEX 1983 a week after the issue was published. The system date is set to 1983-11-14 in these two photos, so assuming that's when the photos were taken, the build itself must be older than that.

The other build appears to be earlier than the first (based on minor differences in the UI ) and is shown in the third and final photo, which was also shown in the 1984-01 issue of PC World.