icloud from Apple is a server based backup solution thats free for the first 5 gigs of storage and is offered on Mac 10.7 and iOS devices. iCloud provides storage of data such as

Apples @iCloud domain can be used for creating a free Classroom Apple ID account. Please remember to document the account name classroomname@icloud.com and the Password. The Password needs to be at least eight characters long and have at least one number and Upper case letter(s).

The iCloud sign up process is quick, Can be found on the iPad in Settings/iCloud/Get a Free Apple ID. iCloud needs the following information

Once done... you will have a classroom Apple ID for use on iTunes, iCloud and App Store. congratulations. More on iCloud can be found Here.