Computer Science · Computer Organization & I/O Systems
Which of the following statements is TRUE regarding Memory-Mapped I/O?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The CPU uses separate control lines for memory and I/O operations
- 2Special I/O instructions like IN and OUT must be used to access devices
- 3I/O devices and memory share the same unified address space✓
- 4I/O devices have a separate address space distinct from main memory
Correct answer
I/O devices and memory share the same unified address space
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