December 2011

Typically two processes communicate with each other on a single system through one of the following inter process communication techniques.

• Pipes
• Message queues
• Shared memory

There are several other methods. But the above are some of the very classic ways of interprocess communication.

But have you ever given a thought over how two processes communicate across a network?

For example, when you browse a website, on your local system the process running is your web browser, while on the remote system the process running is the web server. So this is also an inter process communication but the technique through which they communicate with each other is SOCKETS, which is the focus of this article.
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This article is part of our on-going C programming series.

There are times while writing C code, you may want to store multiple items of same type as contiguous bytes in memory so that searching and sorting of items becomes easy. For example:

1. Storing a string that contains series of characters. Like storing a name in memory.
2. Storing multiple strings. Like storing multiple names.

C programming language provides the concept of arrays to help you with these scenarios.
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Anybody who is working on Linux environment (not just developers), should understand the fundamentals of C programming language and write some basic C program.

This article is part of our ongoing series on C programming language.

The concept of pointers is one of the most powerful fundamentals of C/C++ language.
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