题目内容

In two’s complement addition, if there is a final carry after the leftmost column addition,( ).

A. add it to the rightmost column
B. add it to the leftmost column
C. discard it
D. increase the bit length

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For an 8-bit allocation, the smallest decimal number that can be represented in two’s complement form is ( ).

A. –8
B. –127
C. –128
D. –256

For an 8-bit allocation, the largest decimal number that can be represented in two’s complement form is ( ).

A. 8
B. 127
C. 128
D. 256

In two’s complement representation with a 4-bit allocation, you get ( )when you add 1 to 7.

A. 8
B. 1
C. –7
D. –8

In two’s complement representation with a 4-bit allocation, you get ( )when you add 5 to 5.

A. -5
B. -6
C. –7
D. 10