Hi Guys! In these slides we'll learn how to convert Decimal point numbers to Octal and Octal to Decimal. Hope the sides would be helpfull!

1. Press F5 for
Slideshow

2. Presented by: Misbah
Roll no. 3381
BS Statistics ; semester III
Presented to: Maam Momina
Subject: Computer Science

3. • A number with base 8 is the octal number
• A number with base 10 is the decimal number
• To convert decimal to octal,
 Divide the number by 8
 Write the remainders in the reverse order
 Get the equivalent octal number

4. 3 2 1 0  power of 10 ↓
234510 = 20002*103
3003*102
404*101
55*100

5. 12510=?8
125 / 8 = 15 and rem = 5 (__ 58)
15 / 8 =1 and rem = 7 (finish! 1758)
(Keep dividing by the base until quotient < base)

6. 63810=?8
638 / 8 = 79 and rem = 6 (___ 68)
79 / 8 = 9 and rem = 7 (__ 768)
9 / 8 = 1 and rem = 1 (finish! 11768)
(Keep dividing by the base until quotient < base)

7. 0.34210=?8
0.342 * 8 = 2.7636 ( .28)
0.736 * 8 = 5.888 ( .258)
0.888 * 8 = 7.104 ( .2578)
0.104 * 8 = 0.832 ( .25708)
0.342 ≈ 0.25708 (it is an approximation)
(Take the integer part of every multiplication to form the
Binary number. We can go on many more multiplication to improve the
accuracy of the conversion.)

8. 3 2 1 0  power of 8 ↓
27548 = 2*83 1024
7*82 448
5*81 40
4*80 4
________
1516
10

9. 0 -1 -2 -3 -4power of 8 ↓
0.32708 = 3*8-1 0.375
2*8-2 0.3125
7*8-3 0.013671875
0*8-4 0
_______________
0.419921875
10