iTunes can be used to connect an iPod to a PC.
The best way to transfer your music from your iPod to your PC is with a USB cord. You can also transfer your content using WiFi.
you can only transfer music ipod<=>pc by using itunes.
Use iTunes
You simply sync your music on iTunes. You have to connect your iPod to your PC first using the USB cable.
You can use cucusoft ipod to computer transfer to copy your iPod music back to computer, this will help a lot when you erased your music on PC.
using the USB cable along with the ipod
In general, iTunes will not allow one to move music from an iPod to a PC. The only exception is music that you have purchased through iTunes. There are a number of programs that will bypass iTunes and help with the management of your iPod. One such program is Copy Trans Manager.
Connect it to a PC or mac and sync it with iTunes
To do so, you need to use a program named MacDrive to allow your PC to access its contents. After that, you will be able to PC format your iPod in order to be able to add music to it from either a PC or a Mac. If you want to keep your music, you will have to backup your music using a program named CopyTrans (http://www.copytrans.net) prior to PC format it.
When you sync your iPod touch, music, videos, pictures, and apps should be added to your iPod Touch.
You can use itunes but you need to update it first.