计算机基础知识

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How do modern computers represent negative numbers

Integer Values

• Sign-Magnitude: The leftmost bit is dedicated to representing the sign of the value ( 1 for positive, 0 for negative).
• One's-Complement: All bits of the value are inverted to represent the negative value.
• Two's-Complement: All the bits are inverted and then a 1 is added.

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