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COMPUTING A LEVEL REVISION QUESTIONS 1. What three factors comprise the ACCESS TIME for disk. Explain each briefly. 2. A file has a high hit rate. Explain this and its significance in file design. 3. Describe the three functional parts of a shared bus. 4. Explain batch and transaction processing. Give a suitable application of each and suggest an advantage and disadvantage of one over the other. 5. Explain buffering, why it is necessary and give two examples of its use. 6. Define bit, byte and word. 7. Explain cache memory. 8. Explain character set and control characters (with examples). 9. COM is a WORM method of storage. Explain this and state a more up to date example of a WORM. 10. Name and briefly describe the five main functional parts of a computer. 11. Define cylinder with respect to magnetic disk. 12. Explain, with an example, the difference between data and information. 13. Define a database and a DBMS. What are the...

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