Pae is an intel - provided memory address extension that enables processors to expand the number of bits that can be used to address physical memory from 32 bits to 36 bits through support in the host operating system for applications using the address windowing extensions api ( pae是intel提供的内存地址扩展机制,它通过在宿主操作系统中使用address windowing extensions api为应用程序提供支持,从而让处理器将可以用来寻址物理内存的位数从32位扩展为36位。 )