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None of the mentioned devices is an output device, except a digital camera that has a display screen.
Where an output device can be defined as any device that is capable of displaying information (result) in form of hard copy or soft copy.
Scanner, Printer, Monitor
&
Plotter, Printer, Monitor
Keyboard, Mouse, Scanner, Microphone (Audio Input), Digital Cameras, Joysticks, Webcam, Digital Pen, Barcode Reader
keyboard , mouse , scanner .
a device which not give an output
MICR(Magnetic Ink character reader)
A key board is an input device
Scanner = an input device, so it is not an output device.
The hardwares which are proving data to the system or computer are not an output device such like:
Keyboard, Mouse, Joystick, Webcam, etc.
An output device is normally a command deivice. So to differentiate between a input and an output one should understand what an input or an output is. An input is a status device. It is either1 or0 or on or off. An input device creates the on or off status for the oputput device. For instance in logics (binary systems)1+1=1, 0+0=0,1+0=0,0+1=0 (And Fuction)
Examples of an input device is a limit switch or a thermal switch or an overload unit, start button/signal or stop button/signal. An output device is a unit that converts electrical energy into kinetic or other forms of energy such as a light bulb, heating element, contactor coil, solenoid coil etc.
