Computer Science - Computer Fundamentals - Discussion

Discussion Forum : Computer Fundamentals - Section 1 (Q.No. 7)
7.
Which of the following is the 1's complement of 10?
01
110
11
10
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
56 comments Page 1 of 6.

Abhi pawar said:   3 years ago
Replacing 1 with 0 and 0 with 1 is a one's complement.

Eg;
Q-100001010.
A- 011110101.
(10)

Sachin said:   6 years ago
@Gopal.

For 2's complement, we first find 1's complement and then add 1 in that number.

Eg:

We have a binary number 0111,

2's complement = [1's complememt] + 1 .
1's complement = 1000,
now add 1,
1000
+ 1
===========
1001
===========
(8)

Gautam said:   1 year ago
10 in binary form is -1010.
its 1's complement will be -0101.
Then how the answer is -01?
(5)

Anuj said:   7 years ago
Just change the 1 with 0 and 0 with 1.
1-->0
0-->1
So, 10-->01.
(3)

Nayana said:   7 years ago
1's complement :
It is obtained by changing all 1's to 0's and al 0's to 1's.

Example : 0110.
It's 1's complement is 1001.
(2)

Rajesh Kumar said:   4 months ago
9's Complement of 234.
999 - 234 = 765.

And 9's Complement of 1423.
9999 - 1423 = 8576.
(1)

Sajal said:   8 years ago
Where is the need of 1's, 9's, 10's complement?

I mean I didn't understand the concept of complements .Please, explain.
(1)

SANOOP KUMAR said:   1 decade ago
Its simple, In one's complement method 1 is replaced by 0 and 0 is replaced by 1,

Example : 1010.
Answer : 0101.
(1)

Benjo said:   9 years ago
0 = 1 & 1 = 0.

K.jyothi said:   10 years ago
We can replace 0 as 1 and 1 as 0.


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