Processes are interacting each other using Inter Process Communication.

In Inter process communication there are shared memory, message queues, pipes there for communication.

Please give two examples of application programs that use inter-process communication?

Communication is not an art or event at an instance of time rather it is a continuous process, incorporating various events and activities that are inter-related and inter-dependent.

The computer communication process is commonly known as inter-process communication. This will include input, analysis, processing, storage and output of data.

pipes - nammed and unnammed