The 
Kensington Orbit Trackball
The 
input device you use is one of the most important components of your computer 
system. With it you control how the operating system will function and respond 
to your input. Quite simply, the pointing device used for input is crucial to 
the performance of an operating system that uses a graphical interface. While 
most pointing devices are variations of the two-button mouse there are other devices 
available. One such device, the Kensington Orbit Trackball, is put to the test 
for this review. Trackballs are very popular for graphic design work and CAD design 
but are they as useful for home use?
The 
Device:
The Orbit is slightly larger 
than the average mouse. As it is stationary and does not move around this is not 
a problem. It features an input ball, which is roughly the size of a golfball, 
that is located at the top of the device. The ball is flanked on either side by 
the buttons. Included is software that allows for fine-tuning of the device’s 
movements and assignments to the buttons. The user can easily assign the buttons 
so that it can be used by a lefty. The device is compatible with both USB and 
PS2 mouseport use and retails for approximately $39.95 though it can be had for 
nearly half that price.
Kensington recommends 
that the operator steer the ball with the index finger and operate the buttons 
with the thumb and middle finger. For a person with average to large hands this 
ends up being awkward. Most trackballs feature a ball roughly the size of a baseball. 
A user can use his fingers or palm with the larger ball in a more comfortable 
position. The small input surface of the Orbit makes it difficult to operate precisely 
or comfortably if a lot of movement is required. I found the most awkward movement 
to be scrolling down a page (with the index finger) while holding the left button 
down (with the thumb).
I found the MouseWorks 
software did make adjusting the movement of the trackball more natural but it 
couldn’t make up for the problems created by the small input ball.
Performance 
in Software:
Navigating areas such 
as the Windows desktop are quite easy as most things are spread out. Problems 
begin to crop up when you move to programs such as Internet Explorer and Word. 
The Orbit requires a large amount of input to move from one edge of the screen 
to the other. I found myself using keyboard shortcuts to avoid having to use the 
input ball excessively. Obviously the large input ball, which is the norm with 
most trackballs, would have helped immensely. I became much more familiar with 
keys, such as page up and page down, as they saved me from having to use the awkward 
movement of scrolling with one finger while holding down the left button with 
another finger.
Problems became more 
glaring once I tried to play games. Games like Unreal Tournament and Quake III 
Arena require very precise movements while navigating the playing areas. Moving 
the ball quickly to initiate a turn then trying to slow down to take aim virtually 
became an operation of move and stop short of the target. Obviously this turns 
strafing into an enormous undertaking. The movement problems made the use of weapons 
that require accurate aiming, such as the railgun, virtually impossible.
Conclusions:
I 
cannot recommend the Kensington Orbit Trackball. Lately I’ve noticed it priced 
very aggressively with scroll mice but its performance is sorely lacking. Kensington 
must have also thought so as I found upon searching their site that their latest 
trackball, the TurboBall Trackball, features a large input ball and a scroll wheel. 
Obviously the addition of the large ball and scroll wheel would have made me happier 
with the Orbit but, thanks to my experience, I don’t think trackballs are good 
input devices for gaming. If you don’t game much then maybe a trackball is right 
for you. For the majority of you out there I think you would be happier with a 
comfortable mouse equipped with a scroll wheel.