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About four coding problems with internal use of the computer

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Coding Characteristics Positive zero notation Negative 0 notation
Original code 1-bit sign bit, 7-bit encoding 0 0000000 1 0000000
Anti-code Positive numbers are constant, negative numbers are reversed in addition to the sign bit 0 0000000 1 1111111
Complement Positive number is unchanged, negative numbers are added 1 on the inverse code basis 0 0000000 0 0000000
Shift Code The shift code is similar to the complement, except that the sign bit indicates the opposite 1 0000000 1 0000000

About four coding problems with internal use of the computer

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