Windows XP Professional X64 Edition (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Microsoft Windows XP Professional x64 Edition released on April 25, 2005 is an edition of Windows XP for x86-64 personal computers. It is designed to use the expanded 64-bit memory address space provided by the x86-64 architecture. The primary benefit of moving to 64-bit is the increase in the maximum allocatable system memory. Windows XP 32-bit is limited to a total of 4 gigabytes. Windows XP Professional x64 Edition can support much more memory; although the theoretical memory limit of a 64-bit computer is about 16 exbibytes, Windows XP x64 is limited to 128 GB of physical memory and 16 tebibyte of virtual memory. Microsoft claims this limit will be increased as hardware capabilities improve.