Research how the keyboard and mouse input I/O devices function. For each device, write a theory of operation detailing how each input device works with its various components, including its physical hardware interface, device controller, I/O registers, interrupts, device drivers, and operating system, to support a fully functioning I/O system. Write up a summary of your research that outlines, in your own words, how each of these I/O devices operate. Your write-up must also include a drawing of a hardware and software block diagram that illustrates how each of the aforementioned components work together to support the fully functioning I/O system.

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A: Answer :

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Fundamentals of Input and Output Performance

The I/O subsystem is a component of computer system design that uses buses to assist communication between the Central Processing Unit, Computer Memory/Storage, and Input and Output Devices (that is known as peripheral devices). The I/O subsystem includes disc controllers, tape drives, discs, system buses, and other devices. The I/O database application reads and writes drives using the operating system windows I/O.