SourceThe Unix legacy
Regardless of the ultimate fate of Unix, the operating system born at Bell Labs 40 years ago has established a legacy likely to endure for decades more. It can claim parentage of a long list of popular software, including the Unix offerings of IBM, HP and Sun, Apple's Mac OS X and Linux. It has also influenced systems with few direct roots in Unix, such as Microsoft's Windows NT and the IBM and Microsoft versions of DOS.
Unix enabled a number of startup companies to succeed by giving them a low-cost platform to build on. It was a core building block for the Internet and is at the heart of telecommunications systems today. It spawned a number of important architectural ideas such as pipelining, and the Unix derivative Mach contributed enormously to scientific, distributed and multiprocessor computing.
The ACM may have said it best in its 1983 Turing award citation in honor of Thompson and Ritchie's Unix work: "The genius of the Unix system is its framework, which enables programmers to stand on the work of others."
Is this like modern guitarists still relying on the classic framework of the six-string guitar or something?