A consulting group that scrutinises the source code underlying several operating systems has found that a key networking component of Linux is of higher quality in many regards than competing closed-source software. Reasoning, which sells automated software inspection services, examined part of the code of Linux and five operating systems, comparing the number and rate of programming defects. Specifically, Reasoning examined the implementation of TCP/IP, a key networking technology, and found fewer errors in Linux. Reasoning declined to disclose which operating systems it compared with Linux, but said two of the three general-purpose operating systems were versions of Unix. The...