Course List

• Information Technology
  • Resources
    • Introduction to A-Level Information Technology (lecture)
    • Pearson A-Level IT - Student Intro (June 2019) (document)
    • Pearson A-Level IT - Student Guide (document)
    • Pearson A-Level IT - Specification
    • Pearson A-Level IT - Scheme of Work - Unit 1
    • Pearson A-Level IT - Scheme of Work - Unit 2
  • Introduction to Computer Networking
    • Internet Protocol (IP)
      • Introduction to Internet Protocol (IP) (lecture)
      • Internet Protocol Version 4 (IPv4) Header (lecture)
      • Internet Protocol Version 4 Addresses (lecture)
      • Internet Protocol Version 6 (IPv6) Header (lecture)
    • User Datagram Protocol (UDP) and Transport Control Protocol (TCP)
      • User Datagram Protocol (UDP) (lecture)
      • Transport Control Protocol (TCP) (lecture)
    • Application Layer Protocols (OSI Layers 5 through 7)
      • DHCP (lecture)
    • Physical and Data Link Layers
      • Ethernet (OSI Layers 1 and 2) (lecture)
  • Unit 1
    • Topic 01: Hardware and Software
      • Topic 01 Summary
    • Topic 02: Networks
      • Topic 02 Summary
• AP Computer Science A
  • Introduction to Computer Science
    • Representing Data
      • Analog vs Digital (lecture)
      • Data Representation - Zeros and Ones (lecture)
      • Data Representation - Number Systems (lecture)
      • Data Representation - Octal and Hexadecimal (WORKSHEET)
      • Data Representation - Octal and Hexadecimal (SOLUTION)
      • Data Representation - Binary to Denary (WORKSHEET)
      • Data Representation - Binary to Denary (SOLUTION)
      • Denary to Binary (WORKSHEET)
      • Denary to Binary (SOLUTION)
      • Adding Binary Numbers (WORKSHEET)
      • Adding Binary Numbers (SOLUTION)
      • Data Representation - Binary and ASCII (WORKSHEET)
      • Data Representation - Binary and ASCII (SOLUTION)
      • Signed Numbers (WORKSHEET)
      • Signed Numbers (SOLUTION)
      • Quiz Preparation: Converting Values (WORKSHEET)
      • Quiz Preparation: Converting Values (SOLUTION)
    • Boolean Logic
      • Boolean Logic (lecture)
      • Boolean Algebra (WORKSHEET)
      • Bitwise Operators (WORKSHEET)
    • Eclispe, an Integrated Development Environment (IDE)
      • Using an IDE (Eclipse, or VS Code) (lecture)
      • Hello World - Writing a first program (lecture)
  • Introduction to Java
    • Java Basic Text Output (lecture)
    • Java Data Types
      • Java Integers (int) (lecture)
      • Java Floating Point Numbers (double) (lecture)
      • Java Characters (char) (lecture)
      • Java Arithmetic Operators (lecture)
    • Java Variables
      • Identifier Naming Conventions (lecture)
      • Java Variables (lecture)
      • Java Assignment Operators (lecture)
    • Java Selection (if Statements)
      • Java boolean type, and if Statements (lecture)
    • Java Methods
      • static Methods (lecture)
    • Java Classes
      • Classes for Organization (document)
  • Unit 1: Using Objects and Methods
    • Topic 1.01: Introduction to Algorithms
      • Algorithms and Flowcharts
        • Algorithms and Flowcharts (lecture)
        • Flowchart Decision Blocks (lecture)
      • Algorithms and Flowcharts 1 (WORKSHEET)
      • Algorithms and Flowcharts 1 (SOLUTION)
      • Algorithms and Flowcharts 2 - Subprocesses (WORKSHEET)
    • Topic 1.02: Variables and Data Types
      • Introduction to Primitive Types (lecture)
      • Primitive Types: Integers and Doubles (lecture)
      • Identifier Naming Conventions (lecture)
      • Variables (lecture)
      • Primitive Types (WORKSHEET)
      • Primitive Types (SOLUTION)
      • Review - Types and Variables (lecture)
      • Review - Types and Variables (WORKSHEET)
    • Topic 1.03: Expressions and Output
    • Topic 1.04: Assignment Statements and Input
      • Operators - Assignment and Arithmetic (lecture)
    • Topic 1.05: Casting and Range of Variables
    • Topic 1.06: Compound Assignment Operators
    • Topic 1.07: Application Programming Interface (API) and Libraries
    • Topic 1.08: Documentation with Comments
    • Topic 1.09: Method Signatures
      • Introduction to Java Methods (lecture)
      • Example Methods (lecture)
    • Topic 1.10: Calling Class Methods
    • Topic 1.11: Math Class
      • Introduction to Math Class (lecture)
      • Using the Math Class (WORKSHEET)
      • Writing a class Geometry (lecture)
      • Writing class HeightConversion (ASSIGNMENT)
    • Topic 1.12: Objects: Instances of Classes
    • Topic 1.13: Object Creation and Storage (Instantiation)
    • Topic 1.14: Calling Instance Methods
    • Topic 1.15: String Manipulation
      • String Class - part 1 (lecture)
      • String Class - part 2 (lecture)
      • String Escape Characters (lecture)
      • String Class Methods Explained (document)
      • String Class Basics (WORKSHEET)
      • Coding Assignment: Binary Strings (WORKSHEET)
  • Unit 2: Selection and Iteration
    • Topic 2.01: Algorithms with Selection and Repetition
    • Topic 2.02: Boolean Expressions
    • Topic 2.03: if Statements
      • boolean and if (lecture)
      • Logical Operators (lecture)
      • Assignment: isTeenager
        • Assignment isTeenager (assignment)
        • Code: myPrint.java (Java Code)
        • Code: isTeenager (Java Code)
        • Assignment isTeenager (WORKSHEET)
    • Topic 2.04: Nested if Statements
      • Chaining and Nesting (lecture)
      • Assignment: Chained and Nested if
        • Chaining and Nesting (WORKSHEET)
    • Topic 2.05: Compound Boolean Expressions
      • Short-circuiting Boolean Expressions (lecture)
    • Topic 2.06: Comparing Boolean Expressions
    • Topic 2.07: while Loops
      • The while loop (lecture)
      • Assignment: printCharGrid (WORKSHEET)
    • Topic 2.08: for Loops
      • Comparing the while and for loops (lecture)
    • Topic 2.09: Implementing Selection and Iteration
    • Topic 2.10: Implementing String Algorithms
    • Topic 2.11: Nested Iteration
    • Topic 2.12: Informal Run-Time Analysis
  • MIDTERM REVIEW
    • Primitive Types MCQ
      • Primitive Types MCQ A
      • Primitive Types MCQ A (SOLUTION)
      • Primitive Types MCQ B
      • Primitive Types MCQ B (SOLUTION)
      • Primitive Types QUIZ A (SOLUTION)
      • Primitive Types QUIZ B (SOLUTION)
      • Primitive Types QUIZ C (SOLUTION)
    • String class
      • String - Swap Halves (WORKSHEET)
      • String - Swap Halves (SOLUTION)
    • Boolean and if MCQ and FRQ
      • Boolean and if MCQ
      • Boolean and if MCQ (SOLUTION)
      • Boolean and if FRQ 1 (WORKSHEET)
      • Boolean and if FRQ 1 (SOLUTION)
    • Iteration (while and for loops) MCQ and FRQ
      • Iteration MCQ
      • Iteration MCQ (SOLUTION)
      • Iteration FRQ 1 (ASSIGNMENT)
      • Iteration FRQ 1 (WORKSHEET)
      • Iteration FRQ 1 (SOLUTION)
  • Unit 3: Class Creation
    • Topic 3.01: Abstraction and Program Design
      • UML Diagrams (lecture)
    • Topic 3.02: Impact of Program Design
    • Topic 3.03: Anatomy of a Class
      • Writing Classes (document)
      • Assignment: 3d Vector Class (WORKSHEET)
    • Topic 3.04: Constructors
    • Topic 3.05: Methods: How to Write Them
    • Topic 3.06: Methods: Passing and Returning References of an Object
    • Topic 3.07: Class Variables and Methods
    • Topic 3.08: Scope and Access
    • Topic 3.09: this Keyword
  • Unit 4: Data Collections
    • Topic 4.01: Ethical and Social Issues Around Data Collection
    • Topic 4.02: Introduction to Using Data Sets
    • Topic 4.03: Array Creation and Access
    • Topic 4.04: Array Traversals
    • Topic 4.05: Implementing Array Algorithms
    • Topic 4.06: Using Text Files
    • Topic 4.07: Wrapper Classes
    • Topic 4.08: ArrayList Methods
    • Topic 4.09: ArrayList Traversals
    • Topic 4.10: Implementing ArrayList Algorithms
    • Topic 4.11: 2D Array Creation and Access
    • Topic 4.12: 2D Array Traversals
    • Topic 4.13: Implementing 2D Array Algorithms
    • Topic 4.14: Searching Algorithms
    • Topic 4.15: Sorting Algorithms
    • Topic 4.16: Recursion
    • Topic 4.17: Recursive Searching and Sorting
• Electrical Engineering Club
  • Resources
    • Book: Getting Started in Electronics - Forrest M. Mims
  • Unit 1: Analog Electronic Circuits
    • Introduction To Electronics
      • Introduction to Electronics (lecture)
      • Resistor Color Codes (lecture)
      • Solderless Breadboard (lecture)
      • Atomic Models (WORKSHEET)
      • Electrical Current (WORKSHEET)
    • Resistance
      • ACTIVITY: Series Resistance
        • Measuring Resistance (lecture)
        • Measuring Voltage (lecture)
        • Series Resistance (WORKSHEET)
      • ACTIVITY: Parallel Resistance
        • Parallel Resistance (lecture)
        • Parallel Resistance (WORKSHEET)
      • ACTIVITY: Resistance Practice
        • Resistance Practice (lecture)
        • Resistance Practice (WORKSHEET)
      • ACTIVITY: Internal Resistance
        • Internal Resistance (lecture)
        • Internal Resistance (WORKSHEET)
    • Capacitance
      • Capacitor Voltage and Current
        • Capacitor Voltage and Current (lecture)
        • Capacitor Voltage and Current (procedure)
        • Capacitor Voltage and Current (WORKSHEET)
    • Inductance
    • Diode
      • Diode Activity Setup (lecture)
      • ACTIVITY: Diode Forward Voltage versus Current
        • Diode Forward Voltage vs Current (WORKSHEET)
      • ACTIVITY: Zener Diode Reverse Voltage
        • Zener Diode Reverse Voltage (WORKSHEET)
      • Diode Applications (lecture)
    • Bipolar Junction Transistor (BJT)
    • Metal Oxide Semiconductor Field Effect Transistor (MOSFET)
    • Operational Amplifier (Op-Amp)
    • The 555 Timer IC
  • Unit 2: Digital Electronic Circuits
    • Digital Logic Gates
    • Sequential Logic
  • Unit 3: Microcontrollers
    • What does a microcontroller look like? (image)
• iGCSE Computer Science
  • Unit 0: Introduction
    • Why take iGCSE Computer Science?
    • Pearson Pseudocode Command Set (document)
    • Pearson Specification for iGCSE Computer Science
    • Pearson Pseudocode Command Set for iGCSE Computer Science
    • Pearson iGCSE Computer Science Exam - June 2021
    • Pearson iGCSE Computer Science Exam - June 2021 (MARKING)
  • Unit 1: Problem Solving
    • Introduction to Algorithms
      • Introduction to Algorithms (lecture)
      • Algorithms - Decision Blocks (lecture)
      • Algorithms - Pseudocode (lecture)
      • Algorithms and Flowcharts (WORKSHEET)
      • Algorithms and Flowcharts (SOLUTION)
      • Algorithms - Subprocesses (lecture)
      • Algorithms - Subprocesses (WORKSHEET)
      • Algorithms - Subprocesses (SOLUTION)
    • Searching Algorithms
      • Algorithms - Arrays and Linear Search (lecture)
      • Algorithms - Linear Search (WORKSHEET)
      • Algorithms - Linear Search Maximum (SOLUTION)
      • Algorithms - Linear Search Value (SOLUTION)
      • Algorithms - Binary Search (lecture)
      • Algorithms - Binary Search Flowchart and Pseudocode (WORKSHEET)
      • Algorithms - Binary Search Flowchart and Pseudocode (SOLUTION)
      • Algorithms - Binary Search Example (WORKSHEET)
    • Sorting Algorithms
      • Algorithms - Bubble Sort (lecture)
      • Algorithms - Bubble Sort (WORKSHEET)
      • Algorithms - Bubble Sort (SOLUTION)
      • Algorithms - Merge Sort (lecture)
      • Recursive Algorithms versus Iterative Algorithms (lecture)
    • Algorithms Unit Summary
      • Algorithms - Vocabulary (WORKSHEET)
      • Textbook Unit 1 Question 8 (WORKSHEET)
      • Textbook Unit 1 Question 8 (SOLUTION)
  • Unit 2: Programming
    • Eclispe, an Integrated Development Environment (IDE)
      • Using an IDE (Eclipse, or VS Code) (lecture)
      • Hello World - Writing a first program (lecture)
    • Introduction to Java
      • Java Basic Text Output (lecture)
      • Java Data Types
        • Java Integers (int) (lecture)
        • Java Floating Point Numbers (double) (lecture)
        • Java Characters (char) (lecture)
        • Java Arithmetic Operators (lecture)
      • Java Variables
        • Identifier Naming Conventions (lecture)
        • Java Variables (lecture)
        • Java Assignment Operators (lecture)
      • Java Selection (if Statements)
        • Java boolean type, and if Statements (lecture)
      • Java Methods
        • static Methods (lecture)
      • Java Classes
        • Classes for Organization (document)
    • Topic 05: Developing Code
      • Declare and Initialize Variables (WORKSHEET)
    • Introduction to Python
      • Data Types (lecture)
  • Unit 3: Data
    • Topic 12: Binary
      • Representing Data
        • Analog vs Digital (lecture)
        • Data Representation - Zeros and Ones (lecture)
        • Data Representation - Number Systems (lecture)
        • Data Representation - Octal and Hexadecimal (WORKSHEET)
        • Data Representation - Octal and Hexadecimal (SOLUTION)
        • Data Representation - Binary to Denary (WORKSHEET)
        • Data Representation - Binary to Denary (SOLUTION)
        • Denary to Binary (WORKSHEET)
        • Denary to Binary (SOLUTION)
        • Adding Binary Numbers (WORKSHEET)
        • Adding Binary Numbers (SOLUTION)
        • Data Representation - Binary and ASCII (WORKSHEET)
        • Data Representation - Binary and ASCII (SOLUTION)
        • Signed Numbers (WORKSHEET)
        • Signed Numbers (SOLUTION)
        • Quiz Preparation: Converting Values (WORKSHEET)
        • Quiz Preparation: Converting Values (SOLUTION)
    • Topic 13: Data Representation
      • Vocabulary for Images (WORKSHEET)
      • Introduction to Images (document)
      • Reading a Bitmap File
        • Reading a Bitmap File (document)
        • Reading a Bitmap File (WORKSHEET)
    • Topic 14: Data Storage and Compression
    • Topic 15: Encryption
  • IG1 Review
    • Review of IG1 - Flowcharts and Pseudocode 1 (WORKSHEET)
    • Review of IG1 - Flowcharts and Pseudocode 1 (SOLUTION)
    • Review of IG1 - Flowcharts and Pseudocode 2 (WORKSHEET)
    • Review of IG1 - Flowcharts and Pseudocode 2 (SOLUTION)
    • Midterm Review Quiz 2 (SOLUTION)
  • Unit 4: Computers
    • Topic 16: Machines and Computational Models
      • Topic 16 Summary: Machines and Computational Models (document)
      • Topic 16: Machines and Computational Models (WORKSHEET)
      • Interactive RISC-V ALU (HTML)
    • Topic 17: Hardware
      • Original Research
        • Turing's Paper - Universal Turing Machines (research paper)
        • von Neumann - First Draft Report on the EDVAC (corrected document)
        • von Neumann - First Draft Report on the EDVAC (original document)
    • Topic 18: Logic
      • Boolean Logic
        • Boolean Logic (lecture)
        • Boolean Algebra (WORKSHEET)
        • Bitwise Operators (WORKSHEET)
    • Topic 19: Software
    • Topic 20: Programming Languages
  • Unit 5: Communication and the Internet
    • Introduction to Computer Networking
      • Internet Protocol (IP)
        • Introduction to Internet Protocol (IP) (lecture)
        • Internet Protocol Version 4 (IPv4) Header (lecture)
        • Internet Protocol Version 4 Addresses (lecture)
        • Internet Protocol Version 6 (IPv6) Header (lecture)
      • User Datagram Protocol (UDP) and Transport Control Protocol (TCP)
        • User Datagram Protocol (UDP) (lecture)
        • Transport Control Protocol (TCP) (lecture)
      • Application Layer Protocols (OSI Layers 5 through 7)
        • DHCP (lecture)
      • Physical and Data Link Layers
        • Ethernet (OSI Layers 1 and 2) (lecture)
    • Topic 21: Networks
    • Topic 22: Network Security
    • Topic 23: The Internet and the World Wide Web
  • Unit 6: The Bigger Picture
    • Topic 24: Computing and the Environmental Impace of Technology
    • Topic 25: Privacy
    • Topic 26: Digital Inclusion
    • Topic 27: Professionalism
    • Topic 28: Computing and the Legal Impace of Technology
    • Topic 29: Current and Emerging Trends