I believe you're thinking of Smalltalk there - https://en.wikipedia.org/wiki/Smalltalk#Image-based_persistence https://en.wikipedia.org/wiki/Smalltalk#Image-bas

I believe you're thinking of Smalltalk there - https://en.wikipedia.org/wiki/Smalltalk#Image-based_persistence https://en.wikipedia.org/wiki/Smalltalk#Image-based_persiste...