1.1 NUMBER SYSTEM

Number System

A number system is a basic symbol to represent a set of quantities.

Number System Base

System	Base	Possible Digits
Binary	2	0 1
Octal	8	0 1 2 3 4 5 6 7
Decimal	10	0 1 2 3 4 5 6 7 8 9
Hexadecimal	16	0 1 2 3 4 5 6 7 8 9 A B C D E F

Decimal Number

•             Base of 10 .

•      The value of the assigned weight is composed by 10 digits starting from 0 until 9.The positive and negative values are determined by their position weight structure . Let us see the example as below:

….105 104 103 102 101 100                 (Positive Value) 102 101 100 10-1 10-2 10-3….        (Negative Value)

Binary Number

•    Base of 2.

•         The number consists only two digit 0 and 1 only .The weight structure of binary number is:

  

Hexadecimal Number

•     Base of 16.

•      The composed number start from 0 until F .The number is suitable to present in fours bit number.

• Number System Conversion
  
  
  Converting between binary and decimal number