Linux is a monolithic kernel, so one failure can lead to the whole system crashing. Downsides of Unix There aren't many users of UNIX in the modern world. It is also not free, so it doesn't make sense ...

Many Unix operating systems provide a complete Linux environment that allows Linux applications, including Apache Web Server, Oracle 9i and K Desktop Environment, to run unmodified.

I know this.”, the Unix operating system (trademarked as UNIX) originated at Bell Labs where it initially was only intended for internal use to make writing and running code for systems like the ...

Fans of Unix and its close relative, Linux, pride themselves on the general security of their operating systems compared with Microsoft Windows, which has been plagued with security problems.

SCO, which owns Unix, claims that Unix code has been illegally copied into Linux. Meanwhile, Microsoft sees Linux as a rising threat to its desktop and server operating systems.

Broughton said, however, he does not see Linux supplanting Unix. "We have not seen a replacement of Unix systems by Linux, by either Red Hat's or our own Linux," said Broughton.

An article last Sunday about the Linux operating system Ubuntu, using information from its maker, Canonical, referred erroneously to Ubuntu’s market prevalence.