{"id":54945,"date":"2024-04-16T00:18:57","date_gmt":"2024-04-16T00:18:57","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=54945"},"modified":"2024-04-16T00:18:57","modified_gmt":"2024-04-16T00:18:57","slug":"in-memory-mapped-i-o","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/in-memory-mapped-i-o\/","title":{"rendered":"In memory-mapped I\/O . . . . . . . ."},"content":{"rendered":"

[amp_mcq option1=”the i\/o devices and the memory share the same address space” option2=”the i\/o devices have a separate address space” option3=”the memory and i\/o devices have an associated address space” option4=”a part of the memory is specifically set aside for the i\/o operation” correct=”option1″]<\/p>\n

The correct answer is: A. the i\/o devices and the memory share the same address space.<\/p>\n

In memory-mapped I\/O, I\/O devices are accessed through the same memory addresses as regular memory locations. This allows the CPU to access I\/O devices directly, without the need for special I\/O instructions.<\/p>\n

Option B is incorrect because I\/O devices do not have a separate address space. They share the same address space as regular memory locations.<\/p>\n

Option C is incorrect because the memory and I\/O devices do not have an associated address space. They share the same address space.<\/p>\n

Option D is incorrect because a part of the memory is not specifically set aside for the I\/O operation. The I\/O devices share the same address space as regular memory locations.<\/p>\n","protected":false},"excerpt":{"rendered":"

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