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1. If a processor has 8-bit register,what is the value of (11111111)2 represented in 2's com plement form?

  • A. 255
  • B. 255
  • C. 255
  • D. 255

Answer: Option B

Explanation:

In an 8-bit, 2's complement system, the binary value (11111111)2 represents the decimal number-1. 
Step-by-step calculation To find the decimal value of a 2's complement number, you can use the following steps: 
  • Since the most significant bit (MSB), the leftmost bit, is 1, the number is negative.
  • Find the 2's complement of the binary number to determine its magnitude.
  • Add the negative sign. 

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