This is the standard format for data compression in a Unix environment. It’s used to store several files in one archive and for creating a file system archive and for software distribution. In a TAR archive, information is logged about the owner, file groups, catalog structures and file timestamps. Different bzip2 and gzip tools are used to create an archive.
A file compression format that is created in a corresponding tape archiver. It’s still used in the Linux version 2.6 kernel and the 'pax' archive installer from Apple. The archive contains header information with data about access privileges, the owner and time of creation. It was created to store back-up data on tape drives and other tape devices. These days Oracle developers deliver much of their software in CPIO format.