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The physical address is an address in a computer that is represented in binary numbers. It belongs to a specific block of memory.
How to calculate Physical Address:
Logical Address = Segment : Offset … The 16-bit segment, 16-bit offset
Physical Address (20-bit address)= Segment * 10h + Offset
Where Memory Segments and Offsets are:
A memory segment is a block of 2^16 (or 64 K) consecutive memory bytes.
Data Segment,Code Segment,Stack Segment,Extra Segment
Within a segment, the memory location is specified by an offset. This is the number of bytes from the beginning of the segment
Logical Address = A4FB:4872
Physical Address = A4FB0h + 4872h = 0A9822h