Logical Memory Map

Posted Date: 09 May 2008 Resource Type: Articles/Knowledge Sharing Category: Computer & Technology

Posted By: Ramkumar Member Level: Diamond
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LOGICAL MEMORY MAP

Expanded Memory:
Uses virtual memory, Uses bank-switching to page data in and out of Upper memory quickly.

Extended Memory:
1088k - end of memory
Was created for DOS applications to be able to access RAM outside of the first 640k.

High Memory Area:
1024k - 1088k.
Reserved for use by single application or utility.

Upper Memory:
640k-1024k
960k - 1024k.

Motherboard BIOS:
768k - 960k.

BIOS and RAM Buffers:
768k - 832k.
Used for Page Frames when Expanded memory driver is loaded
640k - 768k.
Video RAM

Conventional Memory:
1k-640k.
Used for DOS applications and TSR's

Regards,
Ram...

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