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CSEC Information Technology · 2015 · Paper 2 · Question 1(a)

Number representation and character encoding questions.

Convert the decimal number 78 to hexadecimal, showing all working.

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Other parts of this question

  1. 1(b)The BCD of a signed decimal number is 1011 0011 0111 1000. State the decimal number.[4 marks]
  2. 1(c)The ASCII representation of the character 'K' is 1001011. What is the ASCII representation of the character 'H'?[2 marks]
  3. 1(d)The two's complement 8-bit representation of a decimal number is 11000100. What is the decimal number?[2 marks]

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