The process is so easy, what it takes only copy the folder. Because Apple has mad it to be so easy friendly procedure for us.
And the good thing is iTunes library can be moved from Mac to Windows computer or otherwise. So you will no longer think twice if each want to buy a new computer. Just replace the old to new, then move the contents to destination computer. Done.
And this post will guide you through the process. If you are ready then we can being. Let's do it.
How to move your iTunes in Mac
In Mac, iTunes Library is stored the Music folder on Home for every Mac account. Within the folder there is iTunes folder, now copy the entire folder to your new computer.
How to move iTunes in Windows
The location of the Music folder is in.
The above step can also be applied to external hard disk. Because iTunes can choose the Library when it's first time launched by pressing the Option button.