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ICT - IGCSE
INPUT, OUTPUT and STORAGE
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Input Devices• Are parts of the hardware system that allows the
users to GIVE information to our computers.
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Input Devices - Sensors
Temperature Sensor • Used in:
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Input Devices - Sensors
Pressure Sensor • Used in:
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Input Devices - Sensors
Light Sensor • Used in:
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Input Devices - Sensors
Motion Sensor • Used in:
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Input Devices - Sensors
Graphic Tablet and Light Pen • Used in:
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Input Devices - Sensors
Optical Mark Reader and Optical character reader
• Used in:
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Input Devices - Sensors
Bar code reader and RFID (Radio Frequency
Identification)• Used in:
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Input Devices - Sensors
Video Camera and Webcams
• Used in:
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Output Devices
Monitors (CRT and FTF)
The Cathode Ray Tube (CRT) is a vacuum tubeThin film transistor liquid crystal display (TFT-LCDLight emitting diode (LED)
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Output Devices
Multimedia Projectors
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Output Devices
Printers
Dotmatrix:
Use where noise is not an issue and copies needs to be made. Laser:
Use where application require low noise and low chemical emission and high quality output.
Inkjet:
Use where application require portability and low volume printout, where changing cartridges will be an issue.
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Output Devices
Graph Plotter
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Output Devices
Speakers
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Control Devices
Motors, Buzzers, Heaters and Lights and Lamps
Control devices sends signals to special devices that can control a fan for example.
Those special devices are called ACTUATORS.
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Actuator
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Storage Devices