Chapter 18: Exchanging Data: Introduction to SQL

A-level Computer ScienceOCR6 topicsHigher

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Karnaugh Maps Long-Answer Questions

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6 marksdescribestandardOCR A

CS18-1 logic minimisation: describe how a Karnaugh map with grouped 1s operates in simplifying a four-input control signal, using precise OCR H446 terminology.

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CS18-2 applied case: explain why a Karnaugh map with grouped 1s would affect simplifying a four-input control signal, including one limitation or trade-off.

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CS18-3 task for logic minimisation: write a response using a Karnaugh map with grouped 1s in simplifying a four-input control signal; produce the minimal sum-of-products expression.

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6 marksevaluatesynopticOCR A

CS18-4 synoptic judgement: evaluate the suitability of a Karnaugh map with grouped 1s for simplifying a four-input control signal, comparing it with one credible alternative.

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17. Exchanging Data: Relational Databases and Normalisation

19. Exchanging Data: Defining and Updating Tables Using SQL

Key learning objectives

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