Little and Big Endian are two different byte orderings used to represent multibyte data types, such as integers, in computer memory.
Pre-Request to read this first: What is Little and Big Endian in System
The choice between Both is crucial when data is transferred between systems with different byte orderings. Network protocols and file formats often specify the byte order to ensure compatibility between systems. Many modern architectures, especially those based on x86 and x86-64, use Little-Endian by default.