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AQA 7516 AS Computer Science
3.1 Fundamentals
- Character
- Integer
- Real
- Boolean
- Arrays
- Date and Time
- User defined
- Variables
- Constants
- Assignment
- Arithmetic
- Boolean
- Relational
- Sequence
- Iteration
- Selection
- IF, CASE
- WHILE, FOR, REPEAT
- Uses of random numbers
- Python random() function
- Python Lottery picker example
- Assigning
- Storage
- Position, length
- Casting, Search
- Character codes and functions
- Repeating code
- Building procedures
- Using procedures
- Functions
- Variable Scope, code libraries, organising code
- Top-Down design
- Hierarchy charts
- Using procedures
- Functions and subroutines
- Variable Scope
- Python examples
3.2 Data Structures
- One dimension
- Uses
- Two dimensions
- Array Functions
- Records
- Read \ Write file
- Binary file
1.2.2 Secondary storage
- Common types of storage
- Suitable devices
- How to choose
1.2.4 Data storage
- Number systems
- Digit position
- Converting between binary/denary
- Adding binary
- Binary shift
- Binary overflow
- Hex symbols
- Converting between binary/hexadecimal
- Converting between denary / hexadecimal
- ASCII
- Character sets
- Unicode
- Storing pixels
- Meta data
- Quality of image
- Size of image file
- What is sound
- Sample rate
- Bit depth
- Size of sound file
- Lossy compression
- Lossless compression
1.3.1 Networks and topologies
- What is a network
- Home network
- Business network/denary
- LAN
- WAN
- Bandwidth
- Number of users
- Latency
- Error rate
- Wi-Fi performance
- Client - Server
- Peer-to-peer
- NIC
- Hub
- Switch
- Router
- Transmission media
- WAP and Wi-Fi
- DNS
- Hosting
- Cloud
- Web servers and clients
- Star topology
- Mesh topology
1.3.2 Networks, protocols and layers
- Wired - Ethernet
- Wireless - Wi-Fi
- Wireless - Bluetooth
- Encryption methods
- Symmetric
- Public - Private key
- IP addressing
- MAC addressing
- TCP/IP
- HTTP
- HTTPS
- FTP
- POP
- IMAP
- SMTP
- Layer concept
1.4.1 Network threats
- Malware
- Social engineering,phishing
- Brute force attack
- Denial of Service
- Data interception
- SQL injection
1.4.2 Prevention methods
- Penetration testing
- Anti-malware software
- Firewalls
- User-access rights
- Passwords
- Encryption
- Physical security
1.5.1 Operating systems
- User interface
- Memory management, multitasking
- Peripheral management and drivers
- User management
- File management
1.5.2 Utility software
- Encryption software
- Defragmentation
- Data compression
1.6.1 Ethical Legal
- Digital divide
- Genetic screening
- Whistleblowers
- Drones
- Self-driving cars
- E-waste
- Sustainability
- Recycling
- Energy
- Earth monitoring
- The stakeholders
- DNA profiling
- National ID cards
- CCTV
- Electronic tracking
- Earth monitoring
- Personal data
- Stakholder perspective
- Anonimity issues
- Use of social media
- Health issues arising
- Citizen journalism
- Making popular videos
- The Data Protection Act 2018
- Computer Misuse Act 1990
- Copyright Designs & Patents Act 1988
- Software licences - open, proprietary
2.1.2 Computational thinking
- Abstraction
- Decomposition
- Algorithmic thinking
- Structure diagrams
- Abstraction practice
- Input-process-output practice
- Decomposition practice
- Algorithm practice
- Pattern recognition practice
- Pseudocode
- Practice activities
- Exam Reference language
- Flowcharts
- Practice activities
2.1.3 Searching and sorting algorithms
- Binary search
- Linear search
- Bubble sort
- Merge sort
- Insertion sort
- Practice questions
2.2.1 Programming Fundamentals
- Variables
- Constants
- Operators
- Assignments
- Input Output
- One dimenstion
- Two dimension
- Static
- Dynamic
- Array functions
- Sequence
- Selection
- Iteration
- Conditionals - IF
- Conditionals - CASE
- WHILE iteration
- DO iteration
- FOR iteration
2.2.3 Additonal programming
- Assignment
- Concatenate
- Traversal
- Search
- Copy
- Open
- Read
- Write
- Close
- Records
- SQL
- SELECT
- WHERE
- FROM
- Repeating code
- Subprocedures
- Functions
- Code library
- Use of random numbers
- Python worked example
- Python files in zip
2.3.1 Defensive design methods
- User interface choice
- Screen widgets
- Repeat data entry
- Input boxes
- Validation
- Authentication
- Comments
- Headers
- Whitespace
- Indentation
- Naming
2.3.2 Identify syntax and logic errors
- Logic errors
- Syntax errors
- Arithmetic order
- Debugging tools
- Runtime errors
- Authentication
- Test plan
- Test data
- Black box strategy
- White box strategy
- Iterative testing
- Final testing
2.5.1 & 2.5.2 Languages & IDE
- Machine code
- Assembly language
- High level language
- Translator
- Compilers
- IDE features
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