Figure 3.1 uses arrows and lines to show how a job’s pages fit into page frames in memory, but the Memory Manager uses tables to keep track of them. There are essentially three tables that perform this function: the Job Table, Page Map Table, and Memory Map Table. Although different operating systems may have different names for them, the tables provide the same service regardless of the names they are given. All three tables reside in the part of main memory that is reserved for the operating system.