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Input Devices - Coggle Diagram
Input Devices
Mouse
A mouse is one of the most important ways to communicate with a computer. It controls the point on the screen and is used to click on things and interact with them.
Touchpad
A touchpad is most commonly used o laptops in place of a mouse. It is used to control the pointer on the screen and interact with apps, files etc.
Keyboard
People use Keyboards to type and insert information onto their computer and is another important way to interact with your computer. One of their uses is to do your school work such as writing an essay on word processing.
Joystick
Joysticks were originally used by pilots as part of an aeroplane's controls and the technology was developed to let computer gamers experience a more realistic game environment.
Sensors
Sensors are used to detect physical quantities outside a computer such as light, temperature and pressure.
Webcam
Webcams are commonly used to allow people to see each other whilst chatting over the internet. Formally this is called 'teleconferencing'
Microphone
In the last few years a number of voice recognition systems have been developed. These packages let the user dictate the text into a computer and then convert the speech to text.
Scanner
Scanners can be used to convert images or text on paper into a digital format that can be used by the computer.
OCR
An OCR system consists of a normal scanner and some special software. The scanner is used to scan text on a document or piece of paper into the computer. The OCR software then examines the page and changes the letters into a form that can be edited or processed by a normal word processing package.
Biometric Device
A common use of biometric data is inside the modern UK passport. A microchip is included in the passport that contains the electronic data unique to the person. At passport control, a biometric reader is used to confirm identity.
Barcode Reader
A barcode reader is an automatic input device which is used to scan or 'read' the barcode by using a visible red light. The reflected light is translated into digital data that is interpreted by the computer to identify the product and price from the database. They are used in supermarkets, pharmacies etc.
Graphics Tablet
Graphics tablet is used for making drawing on your computer easier because it is harder to draw with a mouse or touchpad. By using a graphics tablet a designer can produce much more accurate drawings on the screen than they could with a mouse or other pointing device.