Learn more about Apple ID. If you use a different Apple ID for iTunes and iCloud, and want to restore from a backup, first enter your Apple ID for iCloud. After your device restarts, you'll be asked to enter the Apple ID that you use with the iTunes Store, App Store, or iBooks Store.
File system repository. The file system repository allows access to files which have been uploaded (e.g. via FTP) into designated folders on the server. A file system repository may be available site wide for everyone or within an individual course (set up by admin) or for an individual administrator.
1 Introduction. Source code is often packed for download as a TAR (Tape ARchive) file, that is a standard format in the Unix/Linux world. These files have a .tar extension; they can also be compressed, the extension is .tar.gz or .tar.bz2 in these cases. There are several ways to unpack these files.