How to calculate Physical Address corresponding to Logical Address

Question

Represent the sentence "We are IT students" in physical memory if page size is 5 characters and the entries in page table are-

0	6
1	5
2	7
3	10

Assume physical memory size to be 55 characters

Answer 1

we need 18 characters and so 4 consecutive pages. Assuming we start from 0, in physical memory the locations will be 6, 5, 7 and 10. S, physical memory contents will be like (we have 11 frames for 55 characters):

e IT

We ar

stude

nts

Other frames can have any value. Actual memory content will be bits but here characters are used for representation purpose. Say for ASCII code, we convert 'A' to 01000001 and so on. 

Comments

Thanks