Originally posted by: ericlp
But wait what about NT and XP??? Yeah...! That's a fine OS... Sure it is. It runs nice and stable! too Stable if you ask me. Almost as stable as a Unix machine. NT is a clone of Unix with a windows skin. XP is NT-5 ... I am still thinking they created NT first very quietly. They tweaked some Unix OS Kernel and called it their own. After a few years when no one sued... They figured they made it so they cloned it out to XP and made another billion stealing yet again another OS.
ROFLMAO, something that stable dosent have to be related to UNIX.
The way how these OS really work (NT, Linux, 9x, UNIX) are depends on the kernal, and as far as I know these 4 are all different. There isn't exist kernal porting/copying between these 4, not even with Linux, it might be able to run unix code because it can run its system calls, but its kernal is totally different from unix because its open source development nature, its rather dynamic and flatted out than the layered kernal like UNIX.
In NT its biggest different from UNIX is that it has a micro-kernal which it loads different system services individually rather than run the whole chunk of codes together as an OS like UNIX. This way it will enable the OS to update non-kernal system services without rebooting (Same thing goes to Linux btw, but it dosent have a micro kernal, it have dynamic linking of system modules in the kernal), as for UNIX you can never do that.
As for 9x, its only a DOS that has virtual memory support and nice GUI.
hope that clears out a little.
p.s. i think only OSX have UNIX kernal, 8 and 9 dosent, correct me if im wrong.