Electronics and Communication Engineering - Digital Electronics - Discussion
Discussion Forum : Digital Electronics - Section 1 (Q.No. 7)
7.
In 2's complement representation the number 11100101 represents the decimal number
Answer: Option
Explanation:
A = 11100101. Therefore A = 00011010 and A' = A + 1 = 00011011 = 16 + 8 + 2 + 1 = 27. Therefore A = -27.
Discussion:
54 comments Page 1 of 6.
Maham Fayyaz said:
4 years ago
Negative signed indicates the signed Binary numbers as we take compliment of only -ve signed numbers.
Akhilesh prajapati said:
4 years ago
The Answers Should be C.
(4)
SELVA GANESH.V said:
5 years ago
A = 11100101.
Therefore A = 00011010 and A' = A + 1 = 00011011 = 16 + 8 + 2 + 1 = 27.
Therefore A = -27.
Therefore A = 00011010 and A' = A + 1 = 00011011 = 16 + 8 + 2 + 1 = 27.
Therefore A = -27.
Chandu said:
5 years ago
I think in any condition the 1st bit indicates sign of that number and 0 indicates positive sign and 1 indicates negative sign.
(3)
Anubhav Dandapat said:
5 years ago
Is the 1's complement and 2's complement are the complement each other?
Because the procedure is same, if we find the 2's complement we use the same procedure and here also use the same procedure.
Because the procedure is same, if we find the 2's complement we use the same procedure and here also use the same procedure.
(1)
Anonymous said:
6 years ago
Explanation and answer are wrong.
Number with Most Significant digital represents a negative number i.e.
-1*128+1*64+1*32+0*16+0*8+1*4+0*2+1*1.
=-128+64+32+4+1=-27 (which is original number).
Now, 2's complement of the number will be:
1's C: 00011010.
2's C: 00011011.
Binary Equivalent: 16+8+2+1=27 (which is required answer).
Number with Most Significant digital represents a negative number i.e.
-1*128+1*64+1*32+0*16+0*8+1*4+0*2+1*1.
=-128+64+32+4+1=-27 (which is original number).
Now, 2's complement of the number will be:
1's C: 00011010.
2's C: 00011011.
Binary Equivalent: 16+8+2+1=27 (which is required answer).
(6)
Abhishek B Revankar said:
6 years ago
Carry 1 indicates a positive number.
Carry 0 indicates a negative number.
Hence after adding 1 to the complement, the carry remains 0.
Carry 0 indicates a negative number.
Hence after adding 1 to the complement, the carry remains 0.
(1)
Muthupandi said:
7 years ago
I am not getting this, please anyone explain me.
(1)
Aparna said:
7 years ago
I can't understand it clearly, Please give me the explanation in detail.
(2)
Basava Prabhu said:
7 years ago
2's complement means only negitive number. If we take 2's complement of 011 then it means negitive of 011.
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