Base 16, or the Hexadecimal system is used as a convenient representation of binary numbers. It is much easier for a human being to represent a string of 0s and 1s such as 100010010110 as its Hexadecimal equivalent of 896H. The binary system has two digits 0 and 1. The base 10 system has 10 digits, 0 through 9. The Hexadecimal, base 16, system has 16 digits. In base 16, the first 10 digits 0 to 9, are the same as in decimal, and for the remaining 6 digits, the letters A, B, C, D, E, and F are used.