Three classic and distinct examples of computer hardware that illustrate different functional roles within a system are the keyboard, the monitor, and the hard disk drive. The keyboard serves as a primary input hardware device, allowing the user to type text and send commands into the computer. The monitor acts as an output hardware device, translating digital signals into visible images, text, and video for the user to view. The hard disk drive functions as a storage hardware component, utilizing magnetic platters to permanently save the operating system, applications, and user files so they remain accessible across multiple power cycles.
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