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4 marksComputer Architecture

CAPE Computer Science Unit 1 · 2016 · Paper 2 · Question 1(g)

Explain why multiplexing is important and provide a scenario to support your answer.

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Other parts of this question

  1. 1(a)Construct the truth table for the circuit in Figure 1.[4 marks]
  2. 1(b)Construct a truth table for the proposition P ∧ Q.[4 marks]
  3. 1(c)Define the term 'program counter'.[2 marks]
  4. 1(d)Add the two 8-bit binary numbers stored in Register 1 (10010111) and Register 2 (11011000), showing all working, and explain what will be stored in 8-bit…[4 marks]
  5. 1(e)Convert the decimal number 13.25 to binary, showing all working.[3 marks]
  6. 1(f)Define what a 'multiplexor' is, and draw a block diagram to support your answer.[4 marks]

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