It depends what you mean by 'introduced'. Mac OS X Server 1.0 was released in 1999 but I imagine you are referring to the first desktop OS to use this technology; the first public beta was released 2000 but the first full desktop release was in 2001.
Which Version?
http://en.wikipedia.org/wiki/Mac_os
Use the time line towards the bottom.
Mac OS X was created in 2001 As Mac OS X Beta. The very first Apple Operating System was in 1984 With the Macintosh
Mac OS X (Cheetah) was introduced on 4 March 2001 having been developed since 1997.
Which operating system will work on Apple Macintosh computers depends on the CPU of the computer. Apple computers with PPC CPUs can run Apple's OS 9 Intel CPU computers can run Apple's OS X, and using Boot Camp, can also run Linux and Microsoft's Windows XP operating systems.
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.
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 is based on UNIX.
Mac OS X uses Darwin.
The 4 Applications that were released were: 1. iTunes 2. iMovie 3. iPhoto 4. iDVD All of these were created to run on OS 9 until OSX came out. All Mac OSX Releases (in order): -Mac OS X Server 1.0 "Hera" -Mac OS X Public Beta "Kodiak" -Mac OS X 10.0 "Cheetah" -Mac OS X 10.1 "Puma" -Mac OS X 10.2 "Jaguar" -Mac OS X 10.3 "Panther" -Mac OS X 10.4 "Tiger" -Mac OS X 10.5 "Leopard" -Mac OS X 10.6 "Snow Leopard" -Mac OS X 10.7 "Cougar" (still in development, scheduled for 2011 release)
The main OS for Mac can be found on a Mac when it is switched on. The current main OS is called Mac OS X.
Mac OS X can only be installed on Apple hardware so Vmware is unable to support Mac OS X on anything other than a Mac by running, for example, a virtual installation of Mac OS X Server on a standard Mac OS X machine. Conversely Vmware's Fusion allows the running of Windows, and other operating systems, on an Intel Mac running Mac OS X.
You cannot without erasing your hard drive and installing Mac OS 9 from scratch. Even then Mac OS 9 may not run on modern Mac hardware because Mac OS 9 needs the ROM chip to boot. Modern Mac OS X hardware uses EFI to boot the system instead of a ROM chip to boot. Mac OS X v10.0 - Mac OS X v10.4 support Mac OS 9 applications and can run them, you just need to install the Mac OS 9 compatibility program which can be found on the Mac OS X Install CD.