2.1.5
Flow Diagrams
Flow Diagrams
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.
1Computer Systems
1.1Data Representation
1.1.1Binary Numbers
1.1.2Negative Binary Numbers
1.1.3Hexadecimal
1.1.4Using Hexadecimal
1.1.5Converting Binary & Hexadecimal
1.1.6Converting Denary & Hexadecimal
1.1.7Capacity
1.1.8Calculating Capacity Requirements
1.1.9Binary in Computer Systems
1.1.10Data Compression
1.1.11Run Length Encoding
1.1.12File Formats
1.2Data Transmission
1.3Hardware
1.3.1Elements of Computer Systems
1.3.2Types of Computer System
1.3.3Von Neumann Architecture
1.3.4The Fetch, Decode, Execute Cycle
1.3.5Factors Affecting CPU Performance
1.3.6Computational Logic
1.3.7Input Devices
1.3.82D & 3D Scanners
1.3.9Code Readers
1.3.10Solid State Storage
1.3.11Magnetic Storage
1.3.12Examples of Magnetic Storage
1.3.13Optical Storage
1.3.14Examples of Optical Storage
1.3.15Types of Optical disk
1.3.16Storage Requirements
1.3.17Translation - Compilers
1.3.18Translation - Interpreters
1.3.19Translation - Assemblers
1.3.20Acoustic Sensors
1.3.21Flow Sensors
1.3.22Gas Sensors
1.3.23Humidity Sensors
1.3.24Infrared Sensors
1.3.25Level Sensors
1.3.26Light Sensors
1.3.27Magnetic Field Sensors
1.3.28Moisture Sensors
1.3.29pH Sensors
1.3.30Pressure Sensors
1.3.31Proximity Sensors
1.3.32Temperature Sensors
1.3.33Network Hardware
1.5The Internet & its Uses
1.6Cyber Security
1.6.1Forms of Attack
1.6.2Penetration Testing
1.6.3Types of Malware
1.6.4How Malware Spreads
1.6.5Protecting Against Malware
1.6.6Information Security
1.6.7Structured Query Language (SQL) Injection
1.6.8Firewalls
1.6.9Authentication: User Access Levels
1.6.10Authentication: Passwords
1.6.11Social Engineering
1.6.12Phishing
1.6.13Denial of Service Attacks
1.7Automated & Emerging Technologies
2Algorithms, Programming & Logic
2.1Algorithm Design & Problem Solving
2.1.1Computational Thinking - Abstraction
2.1.2Computational Thinking - Decomposition
2.1.3Computational Thinking - Algorithmic Thinking
2.1.4Pseudocode
2.1.5Flow Diagrams
2.1.6Interpreting, Correcting & Completing Algorithm
2.1.7Correcting Algorithms
2.1.8Completing Algorithms
2.1.9Testing
2.1.10Types of Testing
2.1.11Test Plans
2.1.12Validation & Sanitation
2.1.13Authentication & Contingencies
2.2Programming
2.2.1Programming Fundamentals - Variables & Constants
2.2.2Programming Fundamentals - Comments
2.2.3Programming Fundamentals - Input & Output
2.2.4Data Types
2.2.5Casting
2.2.6Controlling Program Flow - Sequence
2.2.7Controlling Program Flow - Selection
2.2.8Controlling Program Flow - Iteration
2.2.9Modularity - Subroutines
2.2.10Modularity - Scope
2.2.11Arrays
Jump to other topics
1Computer Systems
1.1Data Representation
1.1.1Binary Numbers
1.1.2Negative Binary Numbers
1.1.3Hexadecimal
1.1.4Using Hexadecimal
1.1.5Converting Binary & Hexadecimal
1.1.6Converting Denary & Hexadecimal
1.1.7Capacity
1.1.8Calculating Capacity Requirements
1.1.9Binary in Computer Systems
1.1.10Data Compression
1.1.11Run Length Encoding
1.1.12File Formats
1.2Data Transmission
1.3Hardware
1.3.1Elements of Computer Systems
1.3.2Types of Computer System
1.3.3Von Neumann Architecture
1.3.4The Fetch, Decode, Execute Cycle
1.3.5Factors Affecting CPU Performance
1.3.6Computational Logic
1.3.7Input Devices
1.3.82D & 3D Scanners
1.3.9Code Readers
1.3.10Solid State Storage
1.3.11Magnetic Storage
1.3.12Examples of Magnetic Storage
1.3.13Optical Storage
1.3.14Examples of Optical Storage
1.3.15Types of Optical disk
1.3.16Storage Requirements
1.3.17Translation - Compilers
1.3.18Translation - Interpreters
1.3.19Translation - Assemblers
1.3.20Acoustic Sensors
1.3.21Flow Sensors
1.3.22Gas Sensors
1.3.23Humidity Sensors
1.3.24Infrared Sensors
1.3.25Level Sensors
1.3.26Light Sensors
1.3.27Magnetic Field Sensors
1.3.28Moisture Sensors
1.3.29pH Sensors
1.3.30Pressure Sensors
1.3.31Proximity Sensors
1.3.32Temperature Sensors
1.3.33Network Hardware
1.5The Internet & its Uses
1.6Cyber Security
1.6.1Forms of Attack
1.6.2Penetration Testing
1.6.3Types of Malware
1.6.4How Malware Spreads
1.6.5Protecting Against Malware
1.6.6Information Security
1.6.7Structured Query Language (SQL) Injection
1.6.8Firewalls
1.6.9Authentication: User Access Levels
1.6.10Authentication: Passwords
1.6.11Social Engineering
1.6.12Phishing
1.6.13Denial of Service Attacks
1.7Automated & Emerging Technologies
2Algorithms, Programming & Logic
2.1Algorithm Design & Problem Solving
2.1.1Computational Thinking - Abstraction
2.1.2Computational Thinking - Decomposition
2.1.3Computational Thinking - Algorithmic Thinking
2.1.4Pseudocode
2.1.5Flow Diagrams
2.1.6Interpreting, Correcting & Completing Algorithm
2.1.7Correcting Algorithms
2.1.8Completing Algorithms
2.1.9Testing
2.1.10Types of Testing
2.1.11Test Plans
2.1.12Validation & Sanitation
2.1.13Authentication & Contingencies
2.2Programming
2.2.1Programming Fundamentals - Variables & Constants
2.2.2Programming Fundamentals - Comments
2.2.3Programming Fundamentals - Input & Output
2.2.4Data Types
2.2.5Casting
2.2.6Controlling Program Flow - Sequence
2.2.7Controlling Program Flow - Selection
2.2.8Controlling Program Flow - Iteration
2.2.9Modularity - Subroutines
2.2.10Modularity - Scope
2.2.11Arrays
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