That top menu bar is used for every application. Sure, you can easily choose which of your screens is primary (and hence which displays the menu and the Dock), but it does not move. And that is due to the simple fact that the top menu bar is tied to one screen. Visually, the interface for managing multiple monitors in OS X is solid.

You can give each screen it’s own background (harder to do that in Windows). Changing arrangement and settings of multiple screens is really easy with OS X. It doesn’t always detect the proper native resolution for the monitor, but that is an easy thing to correct. Driver installation is a non-issue because Apple so tightly controls the hardware. So, no matter where the application is, the menu bar is within a short distance of your workspace.

When you operate an application on a particular screen, the menu bar goes with the program. You can move them around in relation to one another, etc. You install the video cards, install the drivers, and then all the screens will appear in your Display Properties. Let’s look at REAL WORLD use of multiple screens in both operating systems. But, how does this translate into real-world use? That’s where I fail to see the point of it in the design of OS X.

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