Nta Net Exam Dec 2018 l ICT Notes -Binary to Decimal Conversion

Nta Net Exam Dec 2018 l ICT Notes -Binary to Decimal Conversion

Binary Number System

A Binary number system has only two digits that are 0 and 1. Every number (value) represents with 0 and 1 in this number system. The base of binary number system is 2, because it has only two digits.

Octal number system

Octal number system has only eight (8) digits from 0 to 7. Every number (value) represents with 0,1,2,3,4,5,6 and 7 in this number system. The base of octal number system is 8, because it has only 8 digits.

Decimal number system

Decimal number system has only ten (10) digits from 0 to 9. Every number (value) represents with 0,1,2,3,4,5,6, 7,8 and 9 in this number system. The base of decimal number system is 10, because it has only 10 digits.

Hexadecimal number system

A Hexadecimal number system has sixteen (16) alphanumeric values from 0 to 9and A to F. Every number (value) represents with 0,1,2,3,4,5,6, 7, 8,9,A,B,C,D,E and F in this number system. The base of hexadecimal number system is 16, because it has 16 alphanumeric values. Here A is 10B is 11C is 12D is 13E is 14 and F is 15.

 

Number system Base Used 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

Nta Net Exam Dec 2018 l ICT Notes -Binary to Decimal Number System Conversions

 

 

Question  1. Convert Binary Number (1 101) To ( ??)10 decimal Number

Ans = (1 101)= ( 13)10

 

 

Question  2.  Convert Octal Number (1121)8 To ( ??)10 decimal Number

Ans – (1121)8    = (593)10

 

 

Question  3. Convert Hexadecimal AC9 To decimal Number

CONVERT Hexadecimal NUMBER TO DECIMAL NUMBER
CONVERT Hexadecimal NUMBER TO DECIMAL NUMBER

Ans – (AC9)16    = (2761)10

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