Which of the following is the best statement to describe the function of the data bus on a microprocessor system ?     The data bus is a one-direction output, that outputs data to the correct address.     The data bus is a two way traffic highway for data to travel to and from the microprocessor to memory.     The data bus is the main output to carry the correct control signals to the right I/O device.      The data bus is an output only to carry the correct memory address to the memory chips.

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A: Below i have explained it with figure:

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Q: / unit of 512 Kv struction code i nemory. The an addressing n wo-addressing

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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.