"Inter-Process Communication, which in short is known as IPC, deals mainly with the techniques and mechanisms that facilitate communication between processes. Now, why do we need special separate mechanisms or techniques for communicating between processes? Why isn't it possible to have information shared between two processes without using such special mechanisms? Let us start from something primitive. Imagine you have two glasses completely filled with water. One glass contains hot water and the other contains cold water. What can you do to make the temperature of water in both the glasses equal? The simplest answer will be to mix the water from both the glasses in a glass with much bigger capacity."
(Submitted by Noel Thu Jul 15, 2004 )
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