We'll now discover if the Mac App Store is available on your Mac and install Xcode if it is.
1. From the Apple icon on the far-left of the menu bar, select App Store to open the store.
Note
If you can't find the menu button, it means your Mac OS version doesn't support the Mac App Store. To update your OS, select the Apple icon and choose Software Update. Complete any required updates and start this exercise again.
If you still don't see the Mac App Store, skip ahead to the next exercise—installing Xcode manually.
2. With the App Store open, search for Xcode or visit http://itunes.apple.com/gb/app/xcode/id448457090 to automatically open Xcode.
3. Once the app Install Xcode has been downloaded, double click...