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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-8B37D53D-77E1-58C6-9A44-3376A450228B" xml:lang="en"><title>Shared Memory
Tutorial</title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>Shared memory is a method of interprocess communication (IPC) where a single
chunk of memory is shared between two or more processes. You can use shared
memory APIs to set permissions on memory and to pass data between programs
efficiently. </p>
<p>The following topics describe how you can use shared memory APIs when you
develop POSIX compliant applications or port POSIX-based applications onto
the Symbian platform. </p>
</conbody></concept>