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3 marksComputer Organisation

CAPE Computer Science Unit 1 · 2009 · Paper 2 · Question 2(c)(iii)

Suppose 16 bits are used to represent instructions in a computer. Using a diagram, explain how a 2-address instruction can be formatted using the 16 available bits.

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Other parts of this question

  1. 2(a)(i)Explain what is meant by the term: Word size.[2 marks]
  2. 2(a)(ii)Explain what is meant by the term: Cache memory.[2 marks]
  3. 2(a)(iii)Explain what is meant by the term: Clock speed.[2 marks]
  4. 2(b)(i)Distinguish between ROM and RAM as they pertain to computer memory.[2 marks]
  5. 2(b)(ii)Distinguish between access speed and access method as they pertain to computer memory.[2 marks]
  6. 2(b)(iii)Distinguish between volatility and capacity as they pertain to computer memory.[2 marks]
  7. 2(c)(i)Define the terms 'instruction set' and 'instruction format'.[2 marks]
  8. 2(c)(ii)State THREE types of instructions typically included in an instruction set.[3 marks]
  9. 2(c)(iv)Describe what happens during a typical instruction cycle, assuming direct addressing is used.[5 marks]

More practice: the rest of this paper · more Computer Organisation questions · all CAPE Computer Science Unit 1 past papers