no apple computer have it's own hard disk As long as the HD and computer connectors match, any brand HD will work. You may have to format the HD for the Mac OS when you first boot up is all. Apple has used just about every brand HD in their computers over the years as an OEM.
It is called a Macintosh or a Mac HD
iTunes should already be displayed correctly. You're computer is not HD, your monitor is. If you're having display issues, then try to change your resolution.
There is no such Apple product by the name of iPad HD.
Apple's Cinema Display screens need a power lead, a Macintosh computer that has a Mini Display Port and suitable leads to connect them together.
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.
Do you have it plugged into the HD part of your tv
Yes! It is way better. QHD stands for Quad HD and is four times better than HD (720p)
The original Apple I computer was a system board (no case, no keyboard, no video display) that was sold to home computer hobbyists for $666. The Apple II, Apple III, Apple Lisa, and Apple Macintosh followed.
Apple HD SC Setup was created in 1986-09.
You have the convenience to either display your programs in standard or high definition format which is a big plus if not all your channels are HD..
If you need a computer buy an iMac if you only need a screen to add to your computer buy a Cinema Display. It is impossible to make a direct comparison between a screen and a computer.