I've started practicing C programming recently and I've searched online for some codes so I can see how they work.I found one with these 3 header files (conio.h,dos.h,io.h) included.
I use Codeblocks 12.11 on Windows 8.0 .I am a beginner not only in C language,but generally in programming.(Seen some PASCAL before,cause i heard it was easy).
Please help!
Look into the documentation for Code::Blocks [1]. conio.h + dos.h are incredibly old and outdated. The C compiler you install/have installed should include much more useful functions to do console I/O, such as stdio.h, which has printf etc contained in it.
[1] - http://www.cprogramming.com/code_blocks/