1. Numbers

2. Number Conversion Convert – Binary number to decimal numbers – Octal numbers to decimal numbers – Hexadecimal to decimal numbers Convert – Decimal numbers to binary numbers – Decimal numbers to Octal numbers Convert – Binary numbers to hexadecimal numbers – Octal numbers to binary numbers

3. Decimal Numbers 7,392 63.75

4. a n r n +a n-1 r n-1 +a n-2 r n-2 +…a 2 r 2 +a 1 r+a 0 +a -1 r -1 +a -2 r -2 a j =coefficients r=base

5. Binary Numbers

6. Binary to Decimal Conversion a j =0,1 r=2 Example: 11010.11

7. Octal Numbers Decimal NumberOctal Numbers 00 11 22 33 44 55 76 87 910 11 12 13

8. Octal Numbers a j =0,1,2,3,4,5,6,7 r=8 Example: (127.4) 8

9. Examples of Hexadecimal Numbers

10. Hexadecimal Numbers a j =0,1,2,3,4,5,6,7,8,9,A,B,C,D,E r=16 Example: (B65F) 16

11. Convert Decimal Numbers to Binary Numbers 41 0.6875

12. Convert Decimal Numbers to Octal Numbers 153 0.513