8086 segmentation technology

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1. The maximum memory limit is determined by CPU The number of digits determines ,2 Bit CPU The maximum memory is 4B.8086 yes 16 It's a plane , Maximum memory 64 KB
2. High order CPU You can install a low bit operating system .64 position CPU It can hold 32 Bit operating system .

Memory address segmentation technology

1. It's solved 16 position CPU visit 20 Bit address

2. Segment address and offset address are not unique

3. Physical address ：20 position （5 Bit hex ）

4. Segment address ：16 position （4 Bit hex ）

5. offset ：16 position （4 Bit hex ）

Physical address

1. There are two ways to represent a physical address
   1. The result of the calculation is
   2. Segment address : offset
2. Physical address by 20 Bit binary number means , Usually this 20 Bit binary number to 5 A hexadecimal number .
3. Physical address = Segment address * 10H + offset