Physical Address Extensions (PAE)

Card Puncher Data Processing

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Physical Address Extensions (PAE) is a intel CPU feature to address physical address space greater than 4 GBytes in a 32 bit computer

It's a paging mechanism.




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Card Puncher Data Processing
Memory - Physical Address Space (Physical Memory)

The physical address space is the total number of uniquely-addressable physical address (memory locations) at a physical level (ie in the ram) and not logical (ie virtual) This is the total processor’s...
Card Puncher Data Processing
Virtual Memory - Paging or Swapping

A transfer of pages between main memory (RAM) and an secondary storage such as hard disk drive, is referred to as paging or swapping. It's the ability to use the disk to extend the amount of RAM available....



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