Decimal number system
The Decimal number system got its name because it uses 10 symbols (or popularly digits) for counting and performing operations. It uses the digits 0 to 9.
In this number system the radix or the base is 10 since number of digits used is ten.The general format of decimal number representation is shown below
104 103 102 101 100 10-1 10-2 10-3 10-4 ← Weights
↑ ↑ ↑
MSD Decimal point LSD
MSD is most significant digit (left most digit of a number)
LSD is the least significant digit (right most digit of a number)
Note: From the fig we can observe that the MSD has the greatest weight and the LSD have the smallest weight.