What is hard drive interface, Computer Engineering

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Q. What is Hard Drive Interface?

Secondary storage devices need a controller to proceed as an intermediary between device and rest of the computer system. On some computers the controller is an essential part of computer's main motherboard. On others controller is an expansion board which connects to system bus by plugging in one of computer's expansion slots. In order in which devices manufactured by vendors independently, that can be used by other computer manufacturers, it is necessary that controllers follow some drive interfacing standard.


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