Data Storage - (Offset|Memory Address)
1 - About
When storing and retrieving data from memory, an offset is used to determine the location in which the data is stored.
For example a data request would be “retrieve 8 bytes of data starting at offset 8100”.
This is similar to saying “give me the fifth binder from the second row” in the real world.
To understand it better, just see the output of an hexdump
See also: Number - Hexadecimal notation (0x)