Procedure to install windows 7 or 8 on a Mac via bootcamp using a CD or USB

Dual Boot Mac OSX and Windows 7 or 8 using Bootcamp :

 

First Step : Insert the Windows 7 or 8 installable CD\DVD ( Either Use Internal or External DVD Rom )
Open Boot Camp Assistant Located at Application > Utilities



Select "Install Windows 7 or Later version" and Click on Continue.