0 votes 0 votes Section $3.3.4$ states that the Pentium Pro extended each entry in the page table hierarchy to $64$ bits but still could only address only $4\: GB$ of memory. Explain how this statement can be true when page table entries have $64$ bits. Operating System tanenbaum operating-system memory-management paging descriptive + – admin asked Oct 26, 2019 admin 319 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.