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Computer Science

GCSE · OCR

QuestionsFlashcards

Identifying & Preventing Threats to Computer Systems & Networks
- Forms of Attack on a Network
  8
- Methods of Preventing a Network Attack
  10

Operating Systems & Utility Software
- The Purpose & Functionality of Operating Systems
  7
- The Purpose & Functionality of Utility Software
  6

Ethical, Legal, Cultural & Environmental Impact
- Impacts of Digital Technology on Wider Society
  7
- Legislation in Computer Science
  8

Boolean Logic Diagrams
- Boolean Logic Diagrams
  9
- Combining Boolean Operators
  7

Principles of Computational Thinking Flashcards

All 6 cards in this deck

What are the three principles of computational thinking?: Abstraction, decomposition and algorithmic thinking.
What is abstraction?: Removing or ignoring unnecessary detail from a problem so only the key features needed to solve it remain.
What is decomposition?: Breaking a problem down into smaller sub-problems that are easier to solve.
e.g. a quiz program splits into: store questions, ask questions, check answers, keep score.
What is algorithmic thinking?: Working out the sequence of steps needed to solve a problem, so the solution can be written as an algorithm.
In a route-planning app, give one detail abstraction keeps and one it removes.: Keeps: roads and distances between places. Removes: colours of buildings, names of shops, scenery.
True or false? Abstraction means breaking a problem into smaller sub-problems.: False. That is decomposition; abstraction is removing unnecessary detail.