Overview#Big-Endian refers to the Endian Ordering of data.
Big-Endian may be demonstrated by writing a decimal number on paper in the usual positional notation understood by a numerate reader: 123.
The digits are written starting from the left and to the right, with the most significant digit, 1, written first. This is analogous to the lowest address of memory being used first.
Big-Endian is an example of a Big-Endian convention taken from daily life.
Endianness in computing is similar, but it applies to the ordering of bytes not digits.