9618 AS Level Computer Science | Unit 2 Lesson 1: Networks Introduction | LAN vs WAN
📌 9618 AS Level Computer Science – Unit 2 Lesson 1: Networks (LAN vs WAN)
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In this lesson, we begin Unit 2: Communication by exploring computer networks, focusing on the difference between Local Area Networks (LANs) and Wide Area Networks (WANs).
You’ll learn what a network is, why networks are used, and how LANs and WANs differ in terms of size, ownership, speed, cost, and security. Understanding LAN vs WAN is essential because it forms the foundation for topics such as the internet, network hardware, and communication protocols later in the unit.
This topic is a core part of Cambridge AS Level Computer Science (9618) and frequently appears in structured and exam-style questions.
🎥 Lesson Breakdown:
0:00 – Intro to Unit 2: Communication
1:10 – What is a computer network?
2:00 – What is a LAN?
3:00 – What is a WAN?
4:10 – Key differences: LAN vs WAN
5:30 – Exam-style questions
📚 Perfect for:
✔️ Students studying Cambridge 9618 AS Level Computer Science
✔️ Learners who want a clear explanation of LAN and WAN
✔️ Teachers looking for structured, syllabus-aligned lessons
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