Little-Endian refers to the Endian Ordering of data.

Little-Endian implies the writing the same number one hundred and twenty three would place the hundreds-digit 1 in the right-most position: 321.

An Entity following conventional Big-Endian place-value order, who is not aware of this special ordering, would read a different number: three hundred and twenty one.

Endianness in computing is similar, but it applies to the ordering of bytes not digits.

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