very large memory (VLM)

Although the addressable memory area of a main memory with 32 address lines seems sufficiently large, it becomes a bottleneck in various applications such as in data warehouses. With a 64-bit system, one could theoretically address an almost unbelievably large number of memory locations, namely 2exp64 or 18exp18 (18 with 18 zeros). This addressable memory size is called Very Large Memory (VLM). Memories with this addressing range have storage capacities of