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Questions and Answers
Which type of instructions can support I/O in embedded systems?
Which type of instructions can support I/O in embedded systems?
- No instructions can support I/O in embedded systems
- Memory-mapped load/store instructions
- Special-purpose I/O instructions
- Both special-purpose and memory-mapped instructions (correct)
What is the purpose of status registers in an I/O device?
What is the purpose of status registers in an I/O device?
- To define the location for the device
- To hold data to be read or written by a disk
- To provide information about the device's state (correct)
- To read and write data from the CPU
Which type of interface is typically used between the CPU and an I/O device?
Which type of interface is typically used between the CPU and an I/O device?
- Analog interface
- Digital interface (correct)
- Serial interface
- Parallel interface
What is the function of I/O primitives in programming?
What is the function of I/O primitives in programming?
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Which CPU instruction is commonly used for I/O in Intel x86 architecture?
Which CPU instruction is commonly used for I/O in Intel x86 architecture?
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