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The advantage of I/O mapped devices to memory mapped is
- a)The former offers faster transfer of data
- b)The devices connected using I/O mapping have a bigger buffer space
- c)The devices have to deal with fewer address lines
- d)No advantage as such
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The advantage of I/O mapped devices to memory mapped isa)The former of...
Since the I/O mapped devices have a separate address space the address lines are limited by the amount of the space allocated.CORRECT OPTION IS C.
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The advantage of I/O mapped devices to memory mapped isa)The former of...
I/O mapped devices and memory mapped devices are two ways of connecting devices to a computer's CPU. In I/O mapping, the devices are connected to the CPU through a separate bus, and the addresses used to access them are distinct from those used for memory. In memory mapping, on the other hand, devices are connected to the same bus that is used for memory, and are accessed using memory addresses.
Advantages of I/O mapped devices over memory mapped devices:
1. Fewer address lines: I/O mapping requires fewer address lines than memory mapping because the devices are connected to a separate bus. This can simplify the design of the system, and reduce the cost of components.
2. Better control over devices: I/O mapping allows the CPU to have more direct control over the devices, because the devices are not sharing the same bus as the memory. This can be important for real-time applications, where devices need to be accessed quickly and reliably.
3. More buffer space: I/O mapping can provide larger buffer spaces for devices, because the devices are not competing with memory for space on the bus. This can be important for devices that need to transfer large amounts of data, such as hard drives or network cards.
4. Faster transfer of data: I/O mapping can provide faster transfer of data than memory mapping, because the devices can be accessed more directly. This can be important for high-performance applications, such as gaming or video editing.
Overall, I/O mapping can provide advantages over memory mapping in terms of simplicity, control, buffer space, and speed. However, the choice of which method to use will depend on the specific needs of the application and the available hardware.
Advantages of I/O mapped devices over memory mapped devices:
1. Fewer address lines: I/O mapping requires fewer address lines than memory mapping because the devices are connected to a separate bus. This can simplify the design of the system, and reduce the cost of components.
2. Better control over devices: I/O mapping allows the CPU to have more direct control over the devices, because the devices are not sharing the same bus as the memory. This can be important for real-time applications, where devices need to be accessed quickly and reliably.
3. More buffer space: I/O mapping can provide larger buffer spaces for devices, because the devices are not competing with memory for space on the bus. This can be important for devices that need to transfer large amounts of data, such as hard drives or network cards.
4. Faster transfer of data: I/O mapping can provide faster transfer of data than memory mapping, because the devices can be accessed more directly. This can be important for high-performance applications, such as gaming or video editing.
Overall, I/O mapping can provide advantages over memory mapping in terms of simplicity, control, buffer space, and speed. However, the choice of which method to use will depend on the specific needs of the application and the available hardware.
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The advantage of I/O mapped devices to memory mapped isa)The former of...
Answer: c
Explanation: Since the I/O mapped devices have a seperate address space the address lines are limited by amount of the space allocated.
Explanation: Since the I/O mapped devices have a seperate address space the address lines are limited by amount of the space allocated.
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