Q: how to update ipod touch

To update

Connect the iPod to your computer and update via iTunes

iTunes 10 for Windows: Update and restore software on iPod, iPhone, or iPad

A 1G iPod can go to iOS 2.2 via iTunes and iOS 3.1.3 via

Purchasing iOS 3.1 Software Update for iPod touch (1st generation)

A 2G to 4.2.1. Requires iTunes version 10.X. That requires a Mac with OSX 10.5.8 or later. With 1OSX 10.4.11 you can only go to iTunes 9.X which gets you as high as iOS 4.1

A 3G to 5.1.1  Requires iTunes version 10.5 or later

A 4G to 6  Requires iTunes version 10.7 or later. That requires a Mac with OSX 10.6.8 or later

Identifying iPod models

So if I have an iPod touch 4th gen I need a Mac computer to update it?   Via iTunes and my library of songs ripped already?

thank u for answering my question

i will try that

sophie