Number Systems

Various number systems  are decimal ( used by human beings) binary ( used by digital  systems) octal  and hexadecimal (used to represent  binary numbers in smaller  lengths). The  relation between these  number systems is shown in the followings table.

Table Various Number Systems

Observing table  above we can see that  equivalent of  decimal  number 10  in binary is 1010 in octal is 12 and in  hexadecimal is . a  but to find  the binary equivalent of decimal number 125 this table  may not be useful. We have to  use  another  method for this  purpose  which  are discussed in the followings  sections.

                                                              Table Various number  systems