The DBMS can then be restarted later with the information in the database intact and proceed as though the software had never stopped.
Here, the state of all RAM memory is stored to disk, the computer is brought into an energy saving mode, then later restored to normal operation.
The programmer may then dump a system image, containing that pre-compiled and possibly customized code—and also all loaded application data.
This system image can be the form in which executable programs are distributed—this method has often been used by programs (such as TeX and Emacs) largely implemented in Lisp, Smalltalk, or idiosyncratic languages to avoid spending time repeating the same initialization work every time they start up.
The World contains the complete operating system, its applications and its data in a single file.