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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-B0F9CDEC-A953-51D0-B7A3-8B341A7C784A" xml:lang="en"><title>Persistent
data</title><shortdesc>Persistent data is data that remains after a program has finished. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>On desktop machines, it is conventional to refer to data on a disk file
as persistent, because it persists after the machine has been turned off.</p>
<p>Data in RAM is volatile, because it is lost when power is removed. On a
Symbian platform device, these distinctions are less clear (because the “disk”
is itself in RAM). It is, nevertheless, useful to refer to data in files as
persistent.</p>
</conbody></concept>