1.2.3

Flow Diagrams

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Flow Diagrams

Flow diagrams are used to represent a given algorithm.

Flow diagrams

Flow diagrams

Flow diagrams are used to visually represent the steps that make up an algorithm.
A standard set of shapes are used to represent different types of step.
Arrows represent the flow of control, or what to execute next.

Standard shapes

Standard shapes

An oval is used for the start and end of a program.
A rectangle is used to represent a process.

Standard shapes

Standard shapes

A parallelogram is used to represent an input or an output.
A diamond is used to represent a decision:
- A decision has two labelled arrows coming out of it.
- The 'Yes' arrow is followed if the condition in the diamond was true, otherwise the 'No' arrow is followed.

1

Computational Thinking & Algorithms

1.1

Computational Thinking

1.1.1Abstraction Thinking 1.1.2Decomposition Thinking 1.1.3Algorithmic Thinking

1.2

Algorithms

1.2.1Algorithms 1.2.2Pseudocode 1.2.3Flow Diagrams 1.2.4Logical Reasoning & Debugging 1.2.5Reading Algorithms 1.2.6Correcting Algorithms 1.2.7Complete the Algorithm 1.2.8Search Algorithms 1.2.9Linear Search 1.2.10Binary Search 1.2.11Sort Algorithms 1.2.12Bubble Sort 1.2.13Insertion Sort 1.2.14End of Topic Test - Algorithms

2

Programming

3

Hardware & Software

3.1

Hardware

3.1.1Elements of Computer Systems 3.1.2Central Processing Unit (CPU)3.1.3Registers of the Central Processing Unit (CPU)3.1.4Factors Affecting CPU Performance 3.1.5Fetch-Decode-Execute Cycle 3.1.6Binary Systems 3.1.7Logic Circuits 3.1.8Boolean Logic 3.1.9End of Topic Test - Logic

3.2

Software

3.2.1System Software

4

Data

4.1

Representing Data

4.1.1Binary 4.1.2Converting Binary & Hexadecimal 4.1.3Converting Denary & Hexadecimal 4.1.4Binary Arithmetic 4.1.5Representing Sound 4.1.6Representing Images 4.1.7Character Sets 4.1.8American Standard Code for Information Interchange 4.1.9Unicode 4.1.10End of Topic Test - Representation

5

The Internet

5.1

Networks

5.1.1Networks 5.1.2Geographical Classification of Networks 5.1.3What is the Internet?5.1.4The World Wide Web 5.1.5Uniform Resource Locators (URLs)5.1.6Web Hosting 5.1.7HTML 5.1.8Searching the World Wide Web 5.1.9Good Searching Tips 5.1.10Are You Looking at Reliable Information?

6

Online Safety & Security

6.1

Protecting Yourself Online

6.1.1Digital Footprints 6.1.2Leaving a Safe Online Footprint 6.1.3Online Safety 6.1.4Malware - Viruses 6.1.5Malware 6.1.6People Online 6.1.7Your Feelings 6.1.8Getting Help

6.2

Computing and the Law

6.2.1Data Protection Act (1998)6.2.2Computer Misuse Act (1990)6.2.3Freedom of Information Act (2000)6.2.4Plagiarism 6.2.5Copyright 6.2.6Copyright Designs and Patents Act (1988)6.2.7Creative Commons Licensing

Jump to other topics

1

Computational Thinking & Algorithms

1.1

Computational Thinking

1.1.1Abstraction Thinking 1.1.2Decomposition Thinking 1.1.3Algorithmic Thinking

1.2

Algorithms

1.2.1Algorithms 1.2.2Pseudocode 1.2.3Flow Diagrams 1.2.4Logical Reasoning & Debugging 1.2.5Reading Algorithms 1.2.6Correcting Algorithms 1.2.7Complete the Algorithm 1.2.8Search Algorithms 1.2.9Linear Search 1.2.10Binary Search 1.2.11Sort Algorithms 1.2.12Bubble Sort 1.2.13Insertion Sort 1.2.14End of Topic Test - Algorithms

2

Programming

3

Hardware & Software

3.1

Hardware

3.1.1Elements of Computer Systems 3.1.2Central Processing Unit (CPU)3.1.3Registers of the Central Processing Unit (CPU)3.1.4Factors Affecting CPU Performance 3.1.5Fetch-Decode-Execute Cycle 3.1.6Binary Systems 3.1.7Logic Circuits 3.1.8Boolean Logic 3.1.9End of Topic Test - Logic

3.2

Software

3.2.1System Software

4

Data

4.1

Representing Data

4.1.1Binary 4.1.2Converting Binary & Hexadecimal 4.1.3Converting Denary & Hexadecimal 4.1.4Binary Arithmetic 4.1.5Representing Sound 4.1.6Representing Images 4.1.7Character Sets 4.1.8American Standard Code for Information Interchange 4.1.9Unicode 4.1.10End of Topic Test - Representation

5

The Internet

5.1

Networks

5.1.1Networks 5.1.2Geographical Classification of Networks 5.1.3What is the Internet?5.1.4The World Wide Web 5.1.5Uniform Resource Locators (URLs)5.1.6Web Hosting 5.1.7HTML 5.1.8Searching the World Wide Web 5.1.9Good Searching Tips 5.1.10Are You Looking at Reliable Information?

6

Online Safety & Security

6.1

Protecting Yourself Online

6.1.1Digital Footprints 6.1.2Leaving a Safe Online Footprint 6.1.3Online Safety 6.1.4Malware - Viruses 6.1.5Malware 6.1.6People Online 6.1.7Your Feelings 6.1.8Getting Help

6.2

Computing and the Law

6.2.1Data Protection Act (1998)6.2.2Computer Misuse Act (1990)6.2.3Freedom of Information Act (2000)6.2.4Plagiarism 6.2.5Copyright 6.2.6Copyright Designs and Patents Act (1988)6.2.7Creative Commons Licensing

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1
What does an oval represent in a flow diagram?Multiple choice

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Pseudocode

Logical Reasoning & Debugging