MSB

MSB stands for most significant bit. In a multi-bit binary number, the MSB is the bit with the largest value. It is the one farthest to the left in the respective number string. For example, the MSB in the binary number 10101010 is the “1” to the far left.

In embedded systems, the MSB is especially important when it comes to data transmission. Together with LSB, MSB is a key component of endianness.