x86 processors store and retrieve data from memory using little-endian order (low to high). Which of these represents how the doubleword 12345678h would be stored in memory? Select the Answer choice that corresponds to the correct answer: A. 0000: 0001: 56 0002: 34 0003: 12 B. 0000: 12 0001: 34 0002: 78 C. 0003: 78 0001: 56 0000: 78 D. 12 0002: 34 0003: 56 0000: 34 0001: 56 0002: 78 0003: 12

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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.