Apple California (R)
I have a Mac OS X but I know Mac OS is a computer made by the brand/company, Apple.
Apple wanted to be the software, and hardware company. That way Mac OS X is built for the Mac computers.
Mac OS X is based on the XNU kernel, a microkernel Mach kernel with a BSD userland, which makes Mac OS X's kernel a hybrid-kernel.
Apple Inc.
The second name of Mac OS X v10.4.5 is Mac OS X v10.4 Intel.Mac OS X 10.4 was known as Mac OS X Tiger.
Apple.
Apple Inc. owns, writes, publishes, and distributes Mac OS X 10.6 "Snow Leopard" (the current version of Mac OS X, as of January 2010), along with every prior version of Mac OS since its introduction in 1984.
Mac OS X 10.4 (Tiger) needs to be purchased as it is not possible to update from Mac OS X 10.2.8
Mac OS X is an operating system released by Apple Inc. It is designed for Apple branded computers, which is why you will never see a Dell, or an HP computer run Mac OS X. There are only two important versions of Mac OS X, Mac OS X Server, and regular Mac OS X. Mac OS X server was designed for servers, while regular Mac OS X was designed for most computers. The current version of Mac OS X (10.6) is named Snow Leopard.
Yes, it is. Any type of MacBook that comes out now is a Mac OS X. The most recent version of Mac OS X is Mac OS X Lion, coming out soon.
Mac OS X uses Darwin.
Mac OS X is based on UNIX.