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==Process images==
A [[Process (computing)|process]] image is a copy of a given process's [[State (computer science)|state]] at a given point in time. It is often used to create [[persistence (computer science)|persistence]] within an otherwise volatile system. A common example is a [[database management system]] (DBMS). Most DBMS can store the state of its [[database]] or databases to a file before being closed down (see [[database dump]]). The DBMS can then be restarted later with the information in the database intact and proceed as though the software had never stopped. Another example would be the [[Hibernate (OS feature)|hibernate]] feature of many operating systems. Here, the state of all [[random-access memory|RAM]] memory is stored to disk, the computer is brought into an energy saving mode, then later restored to normal operation.
Some [[emulator]]s provide a facility to save an image of the system being emulated. In video gaming this is often referred to as a [[savestate]].
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