Please answer the following question: Information: - Kenneth Lane "Ken" Thompson (born February 4, 1943), commonly referred to as ken in hacker circles, is an American pioneer of computer science. Having worked at Bell Labs for most of his career, Thompson designed and implemented the original Unix operating system. He also invented the B programming language, the direct predecessor to the C programming language, and was one of the creators and early developers of the Plan 9 operating systems. Since 2006, Thompson has worked at Google, where he co-invented the Go programming language. - Dennis MacAlistair Ritchie (September 9, 1941 October 12, 2011) was an American computer scientist. He created the C programming language and, with long-time colleague Ken Thompson, the Unix operating system. Ritchie and Thompson received the Turing Award from the ACM in 1983, the Hamming Medal from the IEEE in 1990 and the National Medal of Technology from President Bill Clinton in 1999. Ritchie was the head of Lucent Technologies System Software Research Department when he retired in 2007. He was the "R" in K&R C, and commonly known by his username dmr. - BackupPC is a free disk - to - disk backup software suite with a web - based frontend . The cross-platform server will run on any Linux , Solaris , or UNIX - based server . No client is necessary , as the server is itself a client for several protocols that are handled by other services native to the client OS. In 2007 , BackupPC was mentioned as one of the three most well known open - source backup software , even though it is one of the tools that are '' so amazing , but unfortunately , if no one ever talks about them , many folks never hear of them '' Data deduplication reduces the disk space needed to store the backups in the disk pool . It is possible to use it as D2D2T solution , if the archive function of BackupPC is used to back up the disk pool to tape . BackupPC is not a block - level backup system like Ghost4Linux but performs file - based backup and restore . Thus it is not suitable for backup of disk images or raw disk partitions . BackupPC incorporates a Server Message Block ( SMB ) client that can be used to back up network shares of computers running Windows . Paradoxically , under such a setup the BackupPC server can be located behind a NAT 'd firewall while the Windows machine operates over a public IP address . While this may not be advisable for SMB traffic , it is more useful for web servers running Secure Shell ( SSH ) with GNU tar and rsync available , as it allows the BackupPC server to be stored in a subnet separate from the web server 's DMZ . It is published under the GNU General Public License . - Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. - Linux (pronounced or, less frequently) is a Unix-like computer operating system assembled under the model of free and open-source software development and distribution. The defining component of Linux is the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. The Free Software Foundation uses the name GNU/Linux to describe the operating system, which has led to some controversy. - The Free Software Foundation (FSF) is a 501(c)(3) non-profit organization founded by Richard Stallman on 4 October 1985 to support the free software movement, which promotes the universal freedom to study, distribute, create, and modify computer software, with the organization's preference for software being distributed under copyleft ("share alike") terms, such as with its own GNU General Public License. The FSF was incorporated in Massachusetts, USA, where it is also based. - sed ("stream editor") is a Unix utility that parses and transforms text, using a simple, compact programming language. sed was developed from 1973 to 1974 by Lee E. McMahon of Bell Labs, and is available today for most operating systems. sed was based on the scripting features of the interactive editor ed ("editor", 1971) and the earlier qed ("quick editor", 196566). sed was one of the earliest tools to support regular expressions, and remains in use for text processing, most notably with the substitution command. Other options for doing "stream editing" include AWK and Perl. What is the relationship between 'backuppc' and 'perl'?
A:
programming language