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What is IPC? What are the various schemes available?
The term IPC (Inter-Process Communication) explains various ways by which different process running on some operating system communicate between each other. Various schemes available are as follows:
Pipes: One-way communication scheme by which different process can communicate. The problem is that the two processes should have a common ancestor (parent-child relationship). However this problem was fixed with the introduction of named-pipes (FIFO).
Message Queues : Message queues can be used among related and unrelated processes running on a machine.
Program to calculate the value of the series 1+x+x2+x3+.... +xn. Read the values of ''x'' and ''n'' from the keyboard.
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In a report with an LDB attribute, you do not have to explain how the information should be retrieved from the database tables, but only how the data should be shown on the screen.
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In general, all public processes of a controller class are treated as action processes. If you require prevent this default behaviour, just decorate the public process with NonActi
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