N5 Computing Science

Software Design and Development
1. Computational Structures
  1. Assigning vales to variables
  2. Using arithmetic operations e.g. +, -, *
  3. Pre-defined fucntions
  4. Selection constructs
    1. IF Statement
  5. Iteration and repetition constructs
    1. Fixed loops
    2. Conditional loops
2. Data Types and Structures
  1. Arrays
    1. number[5]
  2. String, character
  3. Numeric
    1. Integers
      1. 1, 55, -23
    2. Reals (singles)
      1. 0.6, -14.25, 30.123
  4. Boolean
    1. TRUE, FALSE
3. Testing and Documenting
  1. Testing - e.g. enter a number between 1 and 10
    1. Normal - e.g. 2,3,4,5,6,7,8,9
    2. Extreme - e.g. 1, 10
    3. Exceptional - e.g. 0, 11, A, #
  2. Errors
    1. Syntax
    2. Execution
    3. Logic
  3. Readability of Code
    1. Internal comments
    2. Meaningful variable names
    3. Indentation
4. Algorithms
  1. Input Validation
5. Design Notations
  1. Pseudocode
    1. HAGGIS
  2. Structure Diagram
  3. Flowchart
6. Low-level Operations
  1. Translation
  2. Low Level Languages
  3. High Level Languages
7. Computer Architecture
  1. Binary
    1. Units of Storage
      1. 1 bit = 1 or 0
      2. 8 bits = 1 byte
      3. 1024 bytes = 1 KB
      4. 1024 KB = 1 MB
      5. 1024 MB = 1 GB
      6. 1024 GB = 1 PT
    2. Convert to Decimal
    3. Convert to Binary
    4. Store bit-mapped Graphic
    5. Store Characters
    6. Storing Real Numbers
  2. Processor
    1. Arithmetic & Logic Unit (ALU)
    2. Control Unit
    3. Registers
  3. Memory
    1. Random Access Memory (RAM)
    2. Read Only Memory (ROM)
    3. Buses
      1. Address Bus
      2. Data Bus
  4. Interfaces
    1. AD/DA
    2. Hardware
    3. Voltages
Information Systems Design and Development
1. Structures and Links
  1. Databases
  2. Web-based
2. User-Interface
3. Media Types
4. Coding
5. Testing
6. Purpose, Features, Functionality, Users
7. Implementation

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