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Input and output devices
Recognize the definition of an input device and its necessity. Examples include barcode scanners, digital cameras, keyboards, microphones, optical mice, QR code scanners, touch screens (resistive, capacitive, and infra-red), and both two-dimensional (2D) and three-dimensional (3D) scanners.
3
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30
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21
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90 min
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CambridgeIGCSEComputer ScienceSubject content
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Input and output devices outcomes3 objectives
- Recognize the definition of an input device and its necessity. Examples include barcode scanners, digital cameras, keyboards, microphones, optical mice, QR code scanners, touch screens (resistive, capacitive, and infra-red), and both two-dimensional (2D) and three-dimensional (3D) scanners.
- Recognize the definition of an output device and its necessity. Examples include actuators, digital light processing (DLP) projectors, inkjet printers, laser printers, light emitting diode (LED) screens, liquid crystal display (LCD) projectors, LCD screens, speakers, and 3D printers.
- (a) Recognize the definition of a sensor and its purposes. (b) Identify the types of data collected by various sensors and understand the appropriate contexts for their use, including selecting the most suitable sensor for specific situations. Examples include acoustic, accelerometer, flow, gas, humidity, infra-red, level, light, magnetic field, moisture, pH, pressure, proximity, and temperature sensors.
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