What is Bluetooth?
Technology used to wirelessly transmit data between devices. Principally used to attach accessories (keyboard and mouse) to Mac OS X and iOS devices. Also used to transmit music to compatible speakers. Named, incidentally, after a viking king (a vi-king?), as you can discover in our roundup of tech term origins.
What is Bluetooth 4.0?
The latest full-number version of Bluetooth, a specification with which the iPhone 4S and later are compatible. (Bluetooth 4.1 and Bluetooth 4.2 were launched in December 2014, but the iPhone 6 series came out before then.)
Bluetooth 4.0, also known as Bluetooth Smart, incorporates a low-power standard, which means it can be turned on and left on without causing a drain on the battery. This has enabled services like AirDrop to be possible. Bluetooth 4.0 still drains the battery when connected to a Bluetooth device like an Apple wireless keyboard.
What does 'bricked' mean?
A bricked iPhone or iPad is one that is about as much use as a brick: it won't switch on and the screen remains completely dark, no matter what you try to do. Some people might refer to such as item as a paperweight. (I say "no matter what you try to do", but there are some solutions that can fix a bricked iPhone or iPad.)
Bricking can have many causes, but there have been some high-profile cases where a change to Apple's operating systems appears to have caused otherwise functional devices to die. Such as Error 53, and a bug in iOS 9.3.
What is CareKit?
CareKit is not a product, but a development framework that enables third-party software firms to build products of their own focused on medical care. It should lead to new software being written for the iPhone and Apple Watch that enables patients to monitor ongoing medical conditions, track medicine intake and exercise, and share the data with their doctors.
What is CarPlay?
CarPlay is an integrated display system - proprietary to Apple - provided as an optional extra when you buy a new car. A large display sits on the dashboard of your car; you plug your iPhone into the CarPlay system, and use a mixture of Siri voice commands and touch-screen controls to interact with CarPlay.
Apple CarPlay serves up Apple Maps, makes Phone calls, displays Messages, and plays Music.
What are Cloud Services?
Cloud services store information on a remote computer, known as a Cloud Server. An intenret connected device, like an iPhone or Mac, can then access the information as its required. Cloud Servers can also help devices along with computational tasks. Apple's own cloud service is called iCloud.
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