An Apple computer will do everything a Windows computer will do.
Messenger have moved to Skype, Skype is supported by all Apple Products.
An Intel processor Apple Computer.
No it is a Windows PC. Apple computer run the OSx operating system which is currently called Snow Leopard.
The iPad can do video conferencing with a Windows Live Messenger program, but additional apps must be purchased. Facetime works only with Apple devices.
Apple made "FaceTime" for video calling from MAC to iPad 2, iPhone 4, iPod touch or MAC. All you need is an Apple ID and an e-mail address and that's it! Another way for video chat is "Yahoo Messenger 2.0". With yahoo messenger 2.0 you can make voice+video calls to other messenger users on iPhone 3GS, iPhone 4, MAC or other windows running systems.
DOS is not part of an Apple computer, it is part of all Windows PCs.
Windows is the operating system on a Microsoft computer or an Apple computer running windows drivers. Without windows your computer would not work.
If the CD contains photos or music they will work on a Mac. If the CD contains a Windows program it will not run on any Apple computer.
Windows is an operating system produced by the Microsoft company. Windows is not a computer or a company. The first Apple computer was sold in July 1976. The first version of Microsoft's Windows operating system was sold in 1985.
The same uses as any other computer. Apple computers will do everything a Windows computer will do and in some case do it better. Graphic Designers, and Photographers use Apple computers because they tend to display graphics much better than a Windows computer.
Most Apple software is designed to work on their Mac OS X operating system and will not work on a computer running the Windows operating system. Apple does make some of their software available for Windows such as iTunes and their Safari browser.