I am often asked (by family members and friends) a lot of the same questions when it comes to their new shiny Apple product, especially when they are trying to migrate from another platform such as Windows. I wrote this response to one such family member and thought it was worthy of a post.
Understanding iTunes and App Store Purchases
First, everyone logged in with the same apple ID shares calendars, documents, settings, and music. However, there was a family share option added a while back (http://www.apple.com/ios/
Documents on iCloud
On a Windows or Mac desktop, you know that you can save documents to your My Documents folder, and you can sort those files into sub-folders of your own design and system. The Apple Apps and all the apps from Third Parties that support it, instead store each Program/App’s files in a folder for that app. All Pages files are in a Pages folder, all Numbers files are in a numbers folder, etc. You didn’t used to be able to access those folder from anywhere but a while back they added the ability to access other app’s folders. But the specific app you want to open from has to allow that function. Some iOS apps have direct Dropbox access as well, so they can open any file in dropbox.
As mentioned above, if you and another family member sign in using the same iCloud account, you will essentially share one set of folders. You will all see the same Pages docs, the same Numbers docs, etc.
Apple iTunes Music and Movies