Confused about itunes on 5s

[Randy06]

I had not backed up my old iphone in months, so I bought a 5s and plugged it in, got a lot of apps I didnt want and almost all of my music has a cloud with a down arrow on it. What does that mean, and how can I delete the apps I dont want off my computer, so that when I plug in, I dont get them again?

Thanks!

 

[verwon]

Delete them under the app section in iTunes and turn off auto-install for new apps.

The cloud means that your music is in the cloud and you need to download it.