Posted by: R A. on 04.07.2017
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A trackball is a pointing device consisting of a ball housed in a socket containing sensors to detect rotation of the ball about two axes-like an upside-down mouse with an exposed protruding ball. The user rolls the ball with the thumb, fingers, or the palm of the hand to move a cursor. Large tracker balls are common on CAD workstations for easy precision. Before the advent of the touchpad, small trackballs were common on portable computers, where there may be no desk space on which to run a mouse.
Some mobile phones have trackballs, including those in the BlackBerry range, the T-Mobile Sidekick 3, and many early HTC smartphones. These miniature trackballs are made to fit within the thickness of a mobile device, and are controlled by the tip of a finger or thumb. These have mostly been replaced on smartphones by touch screens.
A trackball is a computer cursor control device used in many notebook and laptop computers. The trackball is usually located in front of the keyboard toward the user. Essentially, the trackball is an upside-down mouse that rotates in place within a socket. The user rolls the ball to direct the cursor to the desired place on the screen and can click one of two buttons (identical to mouse buttons) near the trackball to select desktopobjects or position the cursor for text entry.
IBM's ThinkPad series of notebook computers uses a "pointing stick", called a TrackPoint, that is integrated into the middle of the keyboard keys.
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A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball.
A trackball is a pointing device consisting of a ball housed in a socket containing sensors to detect rotation of the ball about two axes-like an upside-down mouse with an exposed protruding ball. The user rolls the ball with the thumb, fingers, or the palm of the hand to move a cursor.
device which is attached with the computer mouse to rotate the courser position to select or reach at specified location to smooth operation of computer.
A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball.
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A trackball,although might seem a slightly sophosticated type, is very simple to use.
Talking about its functionalities,it can be used to roll down on a screen with a very little friction unlike in case of an input device such as a mouse.
A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down mouse with an exposed protruding ball.
Track ball is an input device used for playing game. It looks like mouse with two buttons and one solid ball in the middle . It controls the cursor.
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Similar to traditional computer mouse, the trackball mouse is an input device and functions in the same way, except that the trackball mouse remains stationery and does not move about on the operating surface. The trackball mouse configuration has a small solid ball and typically two buttons placed strategically to allow effective pointing ability without the need of excessive arm and wrist movement. When using the trackball, the design encourages a natural position for the hand. The two buttons are located where the user would rest his fingers.
A trackball mouse does not move the same way as a traditional mouse..
Functions:
The trackball mouse is a perfect fit for computer users with a disability. The versatility of the trackball mouse allows those with limited movement an alternative to the typical off-the-shelf mouse. Users do not slide the mouse around a mouse pad; they only use their fingers to roll the ball to move the mouse pointer.
Using a trackball mouse is favored among some gamers because it offers an increased accuracy rate and the agility needed for certain types of video games such as first-person shooter (FPS), rocket-propelled grenade (RPG), and Real-time strategy (RTS). By spinning the trackball in a much faster movement than can be accomplished with using the traditional mouse.
A trackball mouse is quite versatile and proves to be a resourceful input tool, especially when you can program repetitive movements, such as those used in programs for graphic design and computer-aided design. Other programs that use repetitive and strategic maneuvers that benefit from trackballs are related to the military.
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Track ball is a pointing device which consists of a ball to control cursor in the screen . It is mainly used in Laptop and personal computers.
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