2 votes 2 votes closed with the note: doubt cleared A computer system has a 36-bit virtual address space with a page size of 8K, and 4 bytes per page table entry. What is the maximum size of addressable physical memory in this system? Operating System paging operating-system memory-management + – #Rahul asked Oct 19, 2017 • closed Oct 19, 2017 by #Rahul #Rahul 1.5k views comment Share Follow See all 5 Comments See all 5 5 Comments reply Show 2 previous comments #Rahul commented Oct 19, 2017 reply Follow Share how did you calc 32 TB?? 0 votes 0 votes joshi_nitish commented Oct 19, 2017 reply Follow Share yes, 245B = 32TB see, 4Bytes = 32bits, now you will get maximum MM size when these all bits(32) are used to denote frames, now, for frame----> 32 bits for offset----> 13 bits total bits for physical addr = 32 + 13 = 45 bits total MM size = 245bytes = 32TB 6 votes 6 votes vizzard110 commented Sep 17, 2019 reply Follow Share @joshi_nitish Sir when virtual address space is 36 bits we can address up to 2^36 bytes only then how will address this 2^45 bytes of physical memory. I am not able to visualize this solution. Can you help me with an example to understand this problem? 0 votes 0 votes Please log in or register to add a comment.