Signed Number Representations - Comparison Table

Comparison Table

The following table shows the positive and negative integers that can be represented using 4 bits.

4 bit integer representations
Decimal Unsigned Sign and magnitude Ones' complement Two's complement Excess-7 (biased) Base −2
+16
+15 1111
+14 1110
+13 1101
+12 1100
+11 1011
+10 1010
+9 1001
+8 1000 1111
+7 0111 0111 0111 0111 1110
+6 0110 0110 0110 0110 1101
+5 0101 0101 0101 0101 1100 0101
+4 0100 0100 0100 0100 1011 0100
+3 0011 0011 0011 0011 1010 0111
+2 0010 0010 0010 0010 1001 0110
+1 0001 0001 0001 0001 1000 0001
+0 0000 0000 0000 0000 0111 0000
−0 1000 1111
−1 1001 1110 1111 0110 0011
−2 1010 1101 1110 0101 0010
−3 1011 1100 1101 0100 1101
−4 1100 1011 1100 0011 1100
−5 1101 1010 1011 0010 1111
−6 1110 1001 1010 0001 1110
−7 1111 1000 1001 0000 1001
−8 1000 1000
−9 1011
−10 1010
−11

Read more about this topic:  Signed Number Representations

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