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