ROOM 123

The CS Classroom

 

Paper 1

Topic 1 - System Fundamentals

Topic 2 - Computer Organization

Topic 3 - Networks

Topic 4 - Programming (Part 1), (Part 2)

Topic 5 - Abstract Data Structures (Part 1), (Part 2), (Part 3)

Topic 6 - Resource Management

Topic 7 - Control Systems

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Paper 2

Option A - Databases

Option C - Web Science

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Paper 3

Case Study (2025) - The Perfect Chatbot (Part 1), (Part 2)

 

How Computers Work

 

What Makes a Computer a Computer?

Binary & Data

Circuits & Logic

CPU, Memory, Input & Output

Hardware & Software

 

The Internet

 

What is the internet?

Wires, Cables & Wifi

IP Addresses & DNS

Packets, Routers and Reliability

HTTP & HTML

How Search Works

Cybersecurity & Crime

Encryption & Public Keys

 

Crash Course Computer Science

 

Boolean Logic & Logic Gates

Representing Numbers and Letters with Binary

Memory & Storage

Graphical User Interfaces

Operating Systems

Registers and RAM

The Central Processing Unit (CPU)

Algorithms

Files & File Systems

Computer Networks

The Internet

The World Wide Web

Cybersecurity

Cryptography

Kopec Explains Software (Audio Podcast)

 

What is a Cache?

What is a Byte?

What is an Operating System?

Binary Search

Compilers and Interpreters

What is an Algorithm?

What is a Data Structure?

What is Compression?

Cybersecurity

Databases

What is Encryption?

How does the Internet work?

How does the Web work?

What is a Character Encoding?

How do Web Search Engines Work?