Originally posted by spun_1
I UNDERSTAND ABOUT KERNAL MODES!!
If you undestand kernels, then you also understand that since XP Pro and XP home use the same kernel, they are essentially the same operating system.
You should also understand that 9x and XP use very different kernels, and for this reason are obviously very different.
And that, in itself, does a good job answering your questions.
Storm hit it on the head, but to elaborate.. XP Professional is to aimed to replace 2000 and NT -
not because it is based on 2k - But because it is being MARKETED to business users. This is largely because it is more secure, can also be volume licensed and supports dual processors for servers and workstations. That and it is just plain expensive.
XP Home is a replacement for 98 and Me -
Not because it is based on 9x - But because it is being MARKETED for home consumers. Most home users will never touch security permissions, dual processors or some of the extraneous features of Professional.
It has been designed this way so that Microsoft can make more money. Rather than offering a multi-purpose OS for 100 bucks, they offer a more expensive version for "professional" users to squeeze extra cash from companies and people who need those extra (yet basic) features.
Plainly put - XP Home and XP Professional are the same OS. And both are built on 2000.