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Unit 2: Input & Output Devices (2.1 Input devices & their uses (2…
Unit 2: Input & Output Devices
2.1 Input devices & their uses
2.1.1 Keyboards
Concept keyboard
Numeric pads
2.1.2 Pointing devices
Mouse
Touch pad
Tracker ball
2.1.3 Remote control
2.1.4 Joysticks
Driving wheel
2.1.5 Touch screens
2.1.6 Scanners
2.1.7 Digital cameras
Video cameras
2.1.8 Microphones
2.1.9 Sensors
2.1.10 Graphics tablet
2.1.11 Webcams
2.1.12 Light pens
2.2 Direct data entry devices
2.2.1 Devices for reading information from cards
Magnetic stripe readers
Contactless card readers
Chip and pin readers
2.2.2 Radio frequency identification readers (RFID)
Consist of: Microchip & antenna
2.2.3 Magnetic ink character recognition/reader (MICR)
2.2.6 Barcode readers
Quick response (QR) codes
2.3 Output devices & their uses
2.3.1 Monitors
Cathode ray tube (CRT) monitors
Thin film transistor (TFT) monitors
Liquid crystal display/diode (LCD)
Light emitting diode (LED)
Cold cathode fluorescent lamp (CCFL)
Organic light emitting diodes (OLEDs)
2.3.2 Multimedia projectors
2.3.3 Printers
Laser printers
Inkjet printers
Dot matrix printers
3-D printers
2.3.4 Speakers
2.3.5 Control applications
Actuators
Motors
Buzzers
Lights
Heaters
2.2.4 Optical mark recognition/reader (OMR)
2.2.5 Optical character recognition/reader (OCR)