To set up the Dev-C++ compiler on your computer at home, go to:
http://www.bloodshed.net
On the left, select: Download
Select the heading: Dev-C++
In the section for the current release, look near the bottom of the section for
Downloads: and click on: Go to Download Page
Scroll down and find Downloads.
Under: Dev-C++ with Mingw, select Download from: SourceForge
Save the download file.
Open the directory that contains the file you downloaded.
Open and run the devcpp file you downloaded.