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No Legal Advice

The information on Groklaw is not intended to constitute legal advice. While Mark is a lawyer and he has asked other lawyers and law students to contribute articles, all of these articles are offered to help educate, not to provide specific legal advice. They are not your lawyers.

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Much better than M$ | 186 comments | Create New Account
Comments belong to whoever posts them. Please notify us of inappropriate comments.
The Marble Mouse
Authored by: Anonymous on Friday, November 23 2012 @ 06:07 PM EST
I have four of the Logitech Marble Mouse trackballs, three at home and one at
the office. I can't really see using any other pointing device until I get a
decent sized tablet with touchscreen. I'm looking for the same form factor as an
8 1/2 by 11 inch lined tablet. Anything smaller requires a magnifying glass.

[ Reply to This | Parent | # ]

The logitech Marble Mouse is fantastic.
Authored by: Kilz on Friday, November 23 2012 @ 07:09 PM EST
You can still buy them and they work forever as long as you
keep youngsters with jelly covered hands away from them. I
simply refuse to use anything else. I have my wife hooked on
them also. Simply the best, one finger has the cursor move
from screen edge to edge.

[ Reply to This | Parent | # ]

Much better than M$
Authored by: tiger99 on Saturday, November 24 2012 @ 04:58 AM EST
The M$ trackball has prisms moulded in to the ball because its optical sensors
are not very good. The Logitech ball is simply red with a pseudo-random array of
very dark green spots, which obviously provides more than adequate contrast for
the optics, and finer resolution. I have been using Logitechs for ages, but
can't easily find the original model now, although similar models are
available.

The only thing that I have ever found to go wrong is that they become slightly
stiff, so you have to take the ball out and remove debris from the three small
balls on which it sits every six months or so, depending on how much skin you
are shedding, because most of it, like all household dust, will be dead skin. At
the same time the sensor window can be cleaned too.

In some circumstances I have to use a mouse, and the Logitech one works far
better on many surfaces than the M$. All decent mice are optical nowadays, of
course, so there is no build-up of dirt on the drive wheels as used to happen.
In confined spaces such as on a train or aircraft, where there is often nowhere
sensible to put a trackball, I find that a Logitech mouse works ok on my knee,
whether I am wearing trousers or shorts, and even very dark trousers still
work.

I remember the days when an optical mouse cost over 100 and only worked on a
special pad with X and Y grids in different colours, one visible and the other
infra-red. They were very necessary for things like PCB design, although a boss
who was at least a paranoid megalomaniac, if not worse, insisted on trying a
cheap, nasty Genius mouse, which resulted in a complete mess, as it was
producing random spurious movements. Nowadays a Logitech is the interface of
choice, or maybe a Kensington Expert Mouse, which uses a snooker ball sized ball
with fine speckles. Too big to carry around but great on a desktop.

[ Reply to This | Parent | # ]

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