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because he is a traveller........ so.............
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How does a trackball mouse work?
A trackball is a pointing input device just like a mouse. It just gets the input from the user in a slightly different manner. Instead of moving the mouse around on a desk, the user just rolls the ball in the corresponding direction. This is advantageous in situations where there may not be enough room for a proper mouse, and is sometimes claimed to be more comfortable for carpal-tunnel sufferers.
What is a trackerball mouse?
Trackball Trackball is an upside down mouse, that rotates in place within a socket. The user rolls the ball in the direction they would like to move the cursor. Trackerball... Does not comply.
What is a trackball?
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. It is like an upside-down mouse with an exposed protruding ball.
What is the pointing device that allows the user to directly move the ball (similar to upside down mouse)?
trackball
What kind of input devices are available to help the user navigate the screen other than a mouse?
The standard point and click mouse is the most popular device, but their are a few other navigation devices that are gaining popularity. The trackpoint, and touchpad are both common for laptops. Touchpads can be used on desktops as well. Logitech also makes trackball mouses that utilizes a sphere to move the cursor, instead of having to physically move the mouse.
How is track pad different then a track ball?
A trackball is a pointing input device just like a mouse, but receives input from the user in a slightly different manner. Instead of moving the mouse around on a desk, the user just rolls the ball in the corresponding direction. A track pad is also a pointing device consisting of specialized surface that can translate the motion and position of a user's fingers to a relative position on screen. Commonly found in laptops, they can also be found in PDAs and portable music players, such as the Ipod's click wheel.
Advantages of using track ball?
A tracker ball in integrated with a keyboard saving space the for a mouse pad. the big disadvantage is you are stuck with your hand in that position I Say bad human engineering idea.The trackerball basically saves much space.Disadvantage:
What is the function of a trackball?
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 small thumbballs clip onto the side of the keyboard and have integral buttons with the same function as mouse buttons. The trackball was invented by Tom Cranston and Fred Longstaff as part of the Royal Canadian Navy's DATAR system in 1952, eleven years before the mouse was invented. This first trackball used a Canadian five-pin bowling ball.
How user comminicate with computer hardware?
With a keyboard, mouse, touchpad, worldspace controller, trackball, touchscreen, game controller, joystick, wheel and pedals, or any other input peripheral you care to name. Unless I'm misunderstanding the question...
What allows the user to directly move the ball of the mouse?
Most modern computer mice do not have a ball, instead they use optical sensors.
What are positive effects of the computer mouse?
Because of the computer mouse, and its cousins, the trackball and the clickpad, graphical user interfaces are practical. Otherwise, you'd need a keyboard or maybe a joystick to control things. But with a mouse, once you have enough coordination to use one, you can directly click on what you want.
What is the difference between a mouse and trackball?
In computing, a mouse is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the user's hands, with one or more buttons. It sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input. The mouse's motion typically translates into the motion of a cursor on a display, which allows for fine control of a graphical user interface.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. 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 small thumbballs clip onto the side of the keyboard and have integral buttons with the same function as mouse buttons. The trackball was invented by Tom Cranston and Fred Longstaff as part of the Royal Canadian Navy's DATAR system in 1952,[1] eleven years before the mouse was invented. This first trackball used a Canadian five-pin bowling ball. The world's first trackball invented by Tom Cranston, Fred Longstaff and Kenyon Taylor working on the Royal Canadian Navy's DATAR project in 1952. It used a standard Canadian five-pin bowling ball.When mice still used a mechanical design (with slotted 'chopper' wheels interrupting a beam of light to measure rotation), trackballs had the advantage of being in contact with the user's hand, which is generally cleaner than the desk or mousepad and does not drag lint into the chopper wheels. The late 1990s replacement of mouseballs by direct optical tracking put trackballs at a disadvantage and forced them to retreat into niches where their distinctive merits remained more important. Most trackballs now have direct optical tracking which follows dots on the ball.As with modern mice, most trackballs now have an auxiliary device primarily intended for scrolling. Some have a scroll wheel like most mice, but the most common type is a "scroll ring" which is spun around the ball. Kensington's SlimBlade Trackball similarly tracks the ball itself in three dimensions for scrolling.Three major companies Logitech, A4Tech, and Kensington currently produce trackballs, although A4Tech has not released a new model in several years. Microsoft was a major producer, but has since discontinued all of its products. The Microsoft Trackball Explorer continues to be extremely popular (it has no analogous design in production by another company), with used models selling for ~$200 on ebay.
