PLD LESSON 2 (Number System)

NUMBER SYSTEM

Number System is a set of values used to represent different quantities.

UNARY NUMBER SYSTEM

One of the simplest numeral systems is the unary numeral system, in which every natural number is represented by a corresponding number of symbols.

Decimal Number System

The Decimal Number System consists of ten digits from 0 to 9. These digits can be used to represent any numeric value. The base of decimal number system is 10. It is the most widely used number system. The value represented by individual digit depends on weight and position of the digit.

Binary Number System

Machine language is binary. This means that the machine language has binary values or two values, the combination of which represents the data. These two states are “on” state represented by 1 and “off” state, represented by “0”.

Octal Number System

Octal number system uses numbers from 0 to 7 and the numbers are as a base of 8.

Hexadecimal Number System

In Hexadecimal Number System the base used is 16. So there are 16 digits used to represent a given number.

The following are the hexadecimal numerals. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F; the number system is supplemented by letters as the base is greater than 10.