September 22, 2026
3.2 Input and Output Devices (Sensors & Actuators)
Hardware Peripherals, Sensors, and Actuators Input devices capture physical world data and convert it into digital form. Output devices display or actuate digital data. Input Devices: 2D/3D Scanners, Barcode/QR Code readers, Digital cameras, Keyboards, Optical mice, Capacitive vs Resistive touchscreens, Microphones. Sensors: Temperature, Moisture/Humidity, Light, Infrared, Pressure, Acoustic, Gas, pH. Sensors gather analog data that […]