Question

*******please don't copy and paste and don't use handwriting ****

Q1:

Using the below given ASCII table (lowercase letters) convert the

sentence “welcome to cci college” into binary values.

a - 97	b - 98	c - 99	d - 100	e - 101	f - 102	g - 103	h - 104	i - 105
j - 106	k - 107	l - 108	m - 109	n - 110	o - 111	p - 112	q - 113	r -114
s -115	t - 116	u - 117	v - 118	w - 119	x - 120	y - 121	z - 122	Space - 32

Q2:

What are the 16-bit 1’s and 2’s complements of the following binary numbers?

a.    01100

b.    100111100001001

Answer 1

Conversion as per ASCII table:-

Sentence- Decimal :-   Binary value

w - 119 :- 1110111

e - 101 :- 1100101

l - 108 :- 1101100

c - 99 :- 110011

o - 111 :- 1101111

m - 109 :- 1101101

e - 101 :- 1100101

t - 116 :- 1110100

o - 111 :- 1101111

c - 99 :- 110011

c - 99 :- 110011

i - 105 :- 1101001

c - 99 :- 110011

o - 111 :- 1101111

l - 108 :- 1101100

l - 108 :- 1101100

e - 101 :- 1100101

g - 103 :- 1100111

e - 101. :- 1100101

Ans 2. 16 bit 1's and 2's complement:-

a) 01100

Make it 16 bit no. by adding zero's

0000000000001100

1's complement :- 1111111111110011 (change 1 to 0 and 0 to 1)

2's complement :- 1111111111110100 ( add 1 in 1's complement)

b) 100111100001001

Make it 16 bit no:- 0100111100001001

1's complement :- 1011000011110110

2's complement :- 1011000011110111