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To connect an Xbox controller you click the Xbox logo on the middle of the controller, the button should turn white.
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Normally you can't. You cannot tell if water has been frozen and then thawed.
Answer:
The control unit of the central processing unit regulates and integrates the operations of the computer. It selects and retrieves instructions from the main memory in proper sequence and interprets them so as to activate the other functional elements of the system at the appropriate moment
