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Virtual Memory.

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Presentation on theme: "Virtual Memory."— Presentation transcript:

1 Virtual Memory

2 Introduction Virtual memory technique
Logical address Vs physical address Address translation

3 Contd… Processor Virtual Adress Data MMU Physical address Cache
Main Memory Disk MMU Data Virtual Adress Physical address DMA transfer

4 Address Translation PTBR Page Table address Virtual Page no. Offset +
Page frame Control bits Page frame in mem

5 Look Up Virtual Page no. Offset Page frame =? Yes Hit No Miss VPN
Control bits PF

6 Memory Management Requirements
System Space Vs User Space Protection Sharing

7 Queries?

8 If you do not understand well, You cannot explain in a simpler way.
Thank You If you do not understand well, You cannot explain in a simpler way. - Albert Einstien


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