Hi, What is the exact difference between working on Apple pc and working on windows pc? Is the Apple pc's screen better that rest of monitor screen makers? How? Also which is best OS for photoshop Apple or Windows? Thanks in advance.
Usually Apple has better quality of components and of course their OS is based on Unix. That's the main reason why Apple products are better than for example PC with M$.
There's no distinct advantage one way or the other -- as long as you have good hardware, Photoshop will perform well. Apple monitors are very very nice, because they're expensive, but you could easily find another monitor that will be as good. My personal opinion would be that Photoshop runs slightly more smoothly on a Mac, just from personal experience (never crashes, ever).
They're pretty similar except the operating systems are in a bit different format. Although they're very similar as Bill Gates did make Windows after the "Icon Desktop" idea from Mac. The only visible differences are the different Internet Browsers, and Windows has Microsoft Office. Although a Mac is a PC, it just stands for Personal Computer. A Mac is a personal computer.
If you are only going to use it for graphic design then they are pretty much the same (Apple used to be better but that time is long gone). If you are going to use it for other tasks then the availability of software (especially free software) is much better on a PC.