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Invert the bits of each number in the binary sequence (change all 1s to 0s, and all 0s to 1s).

So, you would have:

100110101 (original number)

011001010 (one's complement)

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Q: How do you get the 1's complement of 100110101?
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What is the binary complement 8 bit representation for negative 19?

8-bit 2s complement representation of -19 is 11101101 For 1s complement invert all the bits. For 2s complement add 1 to the 1s complement: With 8-bits: 19 � 0001 0011 1s � 1110 1100 2s � 1110 1100 + 1 = 1110 1101


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9's complement of a decimal number represented in 2421 code is easily obtained by replacing the 1s with 0s,and 0s with 1s,so 2421 code is called a self complementing code.example-2421 of '2' is '0010',after replacing the 0s with 1s and 1s with 0s weget '1101' which is the 2421 of '7'(9s complement of 2 is 7). Thus 2421 code is self complementary.


The 2's compliment of the number 1000 is?

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This is a tricky one, usually we read from MSB to LSB but for this particular priblem we will move from LSB to MSB, now check the 2's complement of these binaries- 110011 => 001101 10100 => 1100 Take more binaries and get their 2's complement, we observe that when read from LSB, all 0s remain 0s until a 1 is encountered, this is the first 1 that is encountered and is remained 1 in the output, the reast of the 0s and 1s encountered are interchanged as in 1's complement.


What is the 2's complement addition for 10001100 00111001?

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