Download - Point & Draw devices
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Input/Output Devices
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Keyboard
04/09/23 2PCTE, Baddowal
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2 button Mouse with scroll wheel
04/09/23 3PCTE, Baddowal
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2 Button Mouse with scroll wheel
• A ball in the bottom of the mouse rolls on the surface as you move the mouse.
• Internal rollers sense the ball movement and transmit the information to computer via the cord of the mouse.
• If the ball is dirty, mouse does not roll smoothly.
04/09/23 4PCTE, Baddowal
![Page 5: Point & Draw devices](https://reader033.vdocuments.us/reader033/viewer/2022061203/547e00335906b5a6718b461b/html5/thumbnails/5.jpg)
Optical Mouse
04/09/23 5PCTE, Baddowal
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Optical Mouse
• Does not use rolling ball.
• Uses light and a small optical sensor, which detects the motion of the mouse.
• Problem of dirty mouse ball is avoided by using optical mouse.
04/09/23 6PCTE, Baddowal
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Wireless Mouse
04/09/23 7PCTE, Baddowal
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Wireless Mouse
• Communicates through Bluetooth mostly.
• Needs external batteries.
04/09/23 8PCTE, Baddowal
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Touchpad of a Laptop Computer
04/09/23 9PCTE, Baddowal
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Touchpad
• Its a pointing device.• It consists of a special surface which translates
the motion & position of user’s fingers to a relative position on the screen.
• Commonly used in laptops as a substitute for a mouse.
• Also used in PDAs.
04/09/23 PCTE, Baddowal 10
![Page 11: Point & Draw devices](https://reader033.vdocuments.us/reader033/viewer/2022061203/547e00335906b5a6718b461b/html5/thumbnails/11.jpg)
Touchscreen
• Most simple, intuitive, and easiest to learn of all input devices.
• Enables users to choose from available options by simply touching with their finger the desired icon or menu item displayed on the screen.
04/09/23 PCTE, Baddowal 11
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Touchscreen
• Most preferred human-computer interface used in information kiosks and ATMs.
04/09/23 PCTE, Baddowal 12
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Mobile with Touch screen and QWERTY keyboard
04/09/23 13PCTE, Baddowal
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Touch screen ATM
04/09/23 14PCTE, Baddowal
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Trackpoint
04/09/23 15PCTE, Baddowal
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Trackball Mouse
04/09/23 16PCTE, Baddowal
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Trackball in a laptop
04/09/23 PCTE, Baddowal 17
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Joystick
04/09/23 18PCTE, Baddowal
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Light Pen
04/09/23 19PCTE, Baddowal