social studies revolutionary invention

I would have to say the invention that has made a great impact on society is the iPod. My opinion that this is a big impact on society is that you can listen to your music where ever, whenever. It is definitely a great advantage over carrying a CD player and all your Cd's everywhere. Also iPods are reliable and there are many different kinds to choose from, while for CD players its not. The iPod also has so many models that fit your life just right. So over any other music and multimedia device I would pick the iPod.