Page 79 - Computer Science V2.0 Class 11

Ans. i.
OCTAL: HEXADECIMAL:

0 0 1 1 1 0 0 0 1 0 0 0 0 0 1 1 1 0 0 0 1 0 0 0

1 6 1 0 3 8 8
(1610) 8 (288) 16
ii.
OCTAL: HEXADECIMAL:
1 1 0 1 1 0 1 0 1 0 0 0 1 1 0 1 1 0 1 0 1

6 6 5 1 B 5

(665) 8 (1B5) 16
iii.
OCTAL: HEXADECIMAL:
0 0 1 0 1 0 1 0 0 0 1 0 1 0 1 0 0

1 2 2 5 4
(124) 8 (54) 16
iv.
OCTAL: HEXADECIMAL:

0 0 1 0 1 0 . 1 0 0 1 0 0 1 0 1 0 . 1 0 0 1

1 2 4 4 A 9
(12.44) 8 (A.9) 16

9. Write binary equivalent of the following octal numbers.
i. 2306
ii. 5610
iii. 742
iv. 65.203
Ans. i.
OCTAL 2 3 0 6
BINARY 010 011 000 110

Binary Number = (10011000110) 2
ii.

OCTAL 5 6 1 0
BINARY 101 110 001 000
Binary Number = (101110001000) 2
iii.

OCTAL 7 4 2
BINARY 111 100 010
Binary Number = (111100010) 2
iv.
Digits 6 5 2 0 3
Weight 110 101 010 000 011
Binary Number = (110101.010000011) 2

Number Systems and Encoding Schemes 65