What is the difference between mouse and a tracker ball?
A tracker ball is both a the ball on top of a stationary mouse
and a type of a mouse that has a ball on top. A typical mouse is
moved over a pad and has the ball directing the cursor on the
bottom, but a tracker ball type mouse has the ball on top of a
stationary mouse where you direct the cursor by moving the ball
with your thumb, FOREFINGER AND MAINLY WITH YOUR PALM. This type of
mouse is sometimes called a tracker ball for short and the ball on
this type of stationary mouse is also called a tracker ball. [
delete the following:...It is not a good name. What does it track?
Nothing that I can tell. Computer terms were assigned by people who
wanted to make it confusing, didn't speak English, or were very
confused themselves] It would be better explained as follows. '''A
tracker ball is both a the ball on top of a stationary mouse and'''
[?a type of a mouse that has a ball on top]. '''A typical mouse is
moved over a pad and has the ball directing the cursor on the
bottom, but a tracker ball type mouse has the ball on top of a
stationary mouse where you direct the cursor by moving the ball
with your thumb,''' '''forefinger but mostly with the inner aspect
of your palm. This type of mouse is used by people with arthritis
or RSI as it saves making the fiddly and speedy movements with the
digit joints (which cause some people pain) and directs the cursor
by making a round movement after putting your hand over the large
glass "tracker" which is on top of the "mouse". I myself was able
to work as a secretary doing 100wpm until the age of 59 despite
arthritic fingers since my late-40s, because an ERGONOMIC TRACKER
MOUSE was recommended and purchased for me by my employers. I can
highly recommend the TRACKER MOUSE to anybody - especially to those
with arthritic hands and intermittent RSI.''' '''"Tracker
Lover"'''