What does erase and sync mean?

i imported some pictures from the camera to my computer and it said that, does that mean they will erase from the camera?

If I sync my ipod to my friends computer and he has his own itunes will my music get deleted?and if so can I get it back?

I can add the new music but it says it will erase my existing tunes! thats a big NO! Help please? :)

i'm pretty sure that's what it said. the app is garage band, it's in my iTunes library but i cant put it back onto my iPad. ...

Whatb dose khz in radio talk mean???

on msn what does this mean \\// ??

Every time I plug my ipod into the computer with the USB cord the computer has a pop up saying that there is no driver instal...

I see it a lot on Twitter sooo??

i have a system update on my phone, but im not sure if the pictures/contacts/games will erase. i don't want them to.

I have an old ipod with old music. how can I erase the music and download a new one.