"10.4 The image file provides a frozen in time snapshot of a running Pharo system. This is the file where all objects are stored and as such it's a cross platfo

"10.4 The image file provides a frozen in time snapshot of a running Pharo system. This is the file where all objects are stored and as such it's a cross platform format. An image file contains the live state of all objects of the system (including classes and compiled methods, since they are objects too) at a given point. An image is a virtual object container." https://ci.inria.fr/pharo-contribution/job/UpdatedPharoByExample/lastSuccessfulBuild/artifact/book-result/PharoTour/PharoTour.html https://ci.inria.fr/pharo-contribution/job/UpdatedPharoByExa... When the Smalltalk implementation provides lightweight processes, snapshot saves the state of the lightweight processes — so when Smalltalk is restarted, the lightweight processes restart and continue doing whatever they were doing.