[surfsvammel]

The calculator being the first app for which they used Swift... I’m guessing a calculator app was the first app many Swift programmers wrote after viewing the excellent Swift lectures from Stanford.

[pvg]

It's been an Interface Builder tutorial/demo since before the Apple days.

[AntiRush]

And, in fact, from the very early Macintosh Days:

https://www.folklore.org/StoryView.py?story=Calculator_Const...

[Austin_Conlon]

The Stanford lecturer Paul Hegarty also worked at NeXT, probably during those days.