41. Hence, the TLB is used to reduce the time taken to access the memory locations in the page table method. 42. A page table was also originally four kilobytes in size and contained 1, 024 page table entries ( PTE ). 43. A page table was also originally four kilobytes in size and contained 1, 024 page table entries ( PTE ). 44. The page table , generally stored in main memory, keeps track of where the virtual pages are stored in the physical memory. 45. Page tables make it easier to allocate additional memory, as each new page can be allocated from anywhere in physical memory.46. Now, each of these smaller page tables are linked together by a master page table, effectively creating a tree data structure. 47. The current Main Page table of contents ( TOC ) is pretty serviceable for much of the current content of Wikipedia. 48. The Page table ( generally loaded in memory ) keeps track of where the virtual pages are loaded in the physical memory. 49. This method uses two memory accesses ( one for the page table entry, one for the byte ) to access a byte. 50. The invention of the page table let the processor operate on arbitrary pages anywhere in RAM as a seemingly contiguous logical address space.
