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Question $17$

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With $8$ bits, totally how many unique values can be represented in unsigned and signed $(2$s complement$)$ representations respectively?

Question $17$ Select one:

unsigned: $512$ signed: $512$

unsigned: $512$ signed: $256$

unsigned: $256$ signed: $256$

unsigned: $256$ signed: $128$

unsigned: $128$ signed: $256$