The Apple iPhone uses Apple's iOS which is based on their Mac OS X system (See links below).
Windows is a popular operating system, but it is made by Microsoft, not Apple.
microsoft office is not an operating system, therefore your question have no answer.
The Apple iPhone is a separate computer from any other computer line. It runs its own operating system, which is completely separate from Apple's OSX desktop/laptop operating system.
There is no Microsoft Apple. Microsoft is a company that produces software such as the operating system called Windows or the word processor Word. Apple is another company that makes the Macintosh range of computers which use Apple's own Mac OS X operating system. Both companies produce software that works on the other companies operating system. For example Microsoft produces a version of Word for the Macintosh and Apple has a version of iTunes that works on the Windows operating system.
Microsoft & Apple, Lion
Linux, Android, Apple, Microsoft.
Although Microsoft doesn't manufacture phones directly at this time, there are several devices that run a mobile version of the Windows operating system. The Nokia Lumia 900 is, as of this writing, the newest and most comparable to an iPhone.
The iPhone is a product of Apple.
Windows is an operating system developed by Microsoft. Apple makes Macintosh computers that run Apple's own Mac OS X operating system but can also run the Windows operating system.
Yes, it is. Microsoft Office 2008 is office suite for Apple Mac OS X operating system. The newest Microsoft's office suite for Windows operating system is Microsoft Office 2007.
Apple's iOS is the operating system used in their mobile devices - iPhone, iPad etc. (See links below)
No. if you have an apple computer you can have windows xp but windows xp computer can not run apple sorry dude