Computer Science - Computer Fundamentals - Discussion
Discussion Forum : Computer Fundamentals - Section 1 (Q.No. 31)
31.
The 2's complement of a binary no. is obtained by adding.....to its 1's complement.
Discussion:
17 comments Page 2 of 2.
Deepak said:
1 decade ago
How to find 9's complement?
Harsh said:
10 years ago
What is 2's complement of number 0100?
Nidhi kothari said:
10 years ago
1's complement of 0100 is 1011.
2's complement = 1's complement + 1.
1011.
+ 1.
= 1100.
2's complement = 1's complement + 1.
1011.
+ 1.
= 1100.
GRADY ONESMO said:
9 years ago
I don't understand about 2's complement. Can anyone explain it?
Ashok Arya said:
9 years ago
10101000111 This 1's and 0's binary language which can understand by computer.
It's hard to do operations on this binary numbers. To simplify this we use 1's and 2's compliment. Like if we have to subtract to binary number just find the 1's complement of number and add them together instead of subtracting.(adding binary number is simpler than subtracting).
1's compliment of 111000110010 is = 000111001101("0 converted to 1" and "1 converted to 0");
2's compliment of 111000110010 is = 000111001101 + 1 = 000111001110...
It's hard to do operations on this binary numbers. To simplify this we use 1's and 2's compliment. Like if we have to subtract to binary number just find the 1's complement of number and add them together instead of subtracting.(adding binary number is simpler than subtracting).
1's compliment of 111000110010 is = 000111001101("0 converted to 1" and "1 converted to 0");
2's compliment of 111000110010 is = 000111001101 + 1 = 000111001110...
(1)
Sayan said:
8 years ago
Why do we need 1's complement and 2's complement? I mean, what are they actually useful for?
Ravn said:
1 year ago
Here, they haven't given any f-number how could we find the f answer? please explain to me.
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