Chapter 39: Data Structures: Trees

A-level Computer ScienceOCR6 topicsHigher

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Interrupts and Input Output Long-Answer Questions

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4 questions24 marks36 min

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6 marksdescribestandardOCR A

CS39-1 interrupt handling: describe how interrupt registers, priorities and handlers operates in keyboard input arriving while a file is saving, using precise OCR H446 terminology.

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6 marksexplainstandardOCR A

CS39-2 applied case: explain why interrupt registers, priorities and handlers would affect keyboard input arriving while a file is saving, including one limitation or trade-off.

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6 markswritehardOCR A

CS39-3 task for interrupt handling: write a response using interrupt registers, priorities and handlers in keyboard input arriving while a file is saving; produce an interrupt-service routine sequence.

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6 marksevaluatesynopticOCR A

CS39-4 synoptic judgement: evaluate the suitability of interrupt registers, priorities and handlers for keyboard input arriving while a file is saving, comparing it with one credible alternative.

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38. Data Structures: Graphs

40. Boolean Algebra: Logic Gates and Truth Tables

Key learning objectives

Understand the key principles behind Data Structures: Trees.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.