Ch 3.2 Input and Output Devices (FULL) | Ch 3 Hardware | O Level / IGCSE CS | 2210/0478

"Follow us on Instagram for quick tips & updates: 👉   / kurlyatzainematics   Learn Input and Output Devices for Cambridge O Level Computer Science (2210, Paper 1, Topic 3.2). This video explains the role of input and output devices, introduces sensors and actuators, and shows when to use each device in real-world scenarios — all with clear, exam-focused explanations. 📌 What you’ll learn in this lesson: What input devices are and why they’re required What output devices are and why they’re required Different types of sensors, the data they capture, and their applications Choosing the most suitable device or sensor for a given context Real O Level–style examples with devices and sensors ✨ Devices and sensors covered in this video: Input devices: barcode scanner, digital camera, keyboard, microphone, optical mouse, QR code scanner, touch screens (resistive, capacitive, infra-red), 2D & 3D scanners Output devices: actuator, DLP projector, inkjet printer, laser printer, LED screen, LCD projector, LCD screen, speaker, 3D printer Sensors: acoustic, accelerometer, flow, gas, humidity, infra-red, level, light, magnetic field, moisture, pH, pressure, proximity, temperature ✨ Perfect for O Levels students preparing for 2210 Paper 1, or anyone revising input, output, and sensor devices with exam-style guidance."