Environment Setup for C programming

You just need a text editor or a c compiler to compile your c source code and run the program.
There are many text editors like notepad ,notepad++, context etc.
You have to download these.

compiler

compiler is a software which create a object file of c source code and create a executable file to run
the program.
You have to install compiler in your system .
Installation on Unix Linux
In linux you have to check the GCC  if it is Installed you can get some info by using this command .

gcc -v If not simply go to http://gcc.gnu.org/install/

To get the gcc

Installation on Mac OS

You have download the Xcode development environment from Apple's web site

http://developer.apple.com/technologies/tools/.

Installation on Windows

To install gcc in windows you have to download MinGW. To install MinGW to the home page of MinGW. www.mingw.org

You must install gcc-core, gcc-g++, binutils, and the MinGW runtime

When the installation is complete, you will be able to run gcc, g++, ar, ranlib, dlltool, and several other GNU tools from the Windows command line.