What is page tables, pages, and page table entry?
<p>I am really confused about these 3 things and I have been trying to understand this for a good solid 2 hours and no luck. </p>

<p>Q.
If I have a 47-bit virtual address space with a page size of 16 KB and that page table entry takes 8 bytes. How many levels of page tables would be required to map the virtual address space if every page table is required to fit a single page?</p>

<p>I know what a page table is, but what exactly is the difference between a <strong>page table entry</strong> and a <strong>page</strong>? In the answer key, it starts off with this:</p>

<p>A 1-page page table contains 2^11 PTE (x8 bytes), pointing to 2^11 pages (addressing 2^25 bytes). Can someone explain to me where 2^11 pages came from? </p>

<p>More or less, I am confused about what it means by a page and what the difference is with a page table entry.</p>