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2. Explain why it may be necessary to return to the implementation

iterative development process after the testing stage.

User Brian Lacy
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Answer:

A peripheral is a piece of computer hardware that is added to a computer in order to expand its abilities. The term peripheral is used to describe those devices that are optional in nature, as opposed to hardware that is either demanded or always required in principle.

Step-by-step explanation:

User Irfan TahirKheli
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