Any Mac, iOS device, Apple TV, or Windows computer that meets iCloud system requirements for the iCloud features you want to use and is signed in to iCloud with your Apple ID. Certain features are available on only some of those devices. For requirements and recommendations for each feature, see the Apple Support article System requirements for iCloud.
iCloud may not be available in all areas, and iCloud features may vary by area. For more information, visit the iCloud website.