solved questions of binary system

computer applications in pharmacy

1. ASSIGNMENT OF 16 APRIL’20
TOPIC: BINARY SYSTEM
Answer the following Questions.
i. Convert the following Decimal numbers into Binary number system.
(a) 84 = ( 1010010 )
2


(b) 43 = ( 101011 )
2


( c) 68 = ( 100100 )
2

2. ii. Find the 1s complement of the following numbers :
The one’s complement of a binary number is defined as the value
obtained by inverting all the bits in the binary representation of the
numbers (swapping 0s for 1s and vice versa).
(a) 1011101 = 0100010
(b) 1010 = 0101
(c) 1111 = 0000

iii. Find out the decimal equivalent of the following octal number.
(a) (645)
8
= ( 421 )
10


(b) (641)
8
= ( 417 )
10

3. (c) (214)
8
= (140 )
10



iv. Find the 2s complement of the following numbers:
2s complement is 1s complement + 1
(a) 11001011 = 00110101
(b) 1011 = 0101
(c) 1110 = 0010



v. Find out the decimal equivalent of the following Hexa decimal number:
(a) (A3B)
H
= (10311 )
16
= (2619)
10

4. (b) (6DE)
H
= ( 61314 )
16
= (1758)
10



© (1E2)
16
= (1142)
16
= (482)
10




vi. Convert the following Binary numbers into Decimal number
system.
(a)1010 = (10)
10

5. b) 1111 = (15)
10



© 1101 = (13)
10

6. Submitted by: Ishika Choudhary
Roll no. = 51