Because of mechanical and electrical design differences between the old-style
mouse and the ADB mouse, you cannot modify an old-style mouse for use with ADB.
However, there are a number of different vendors producing alternative input
devices for use with the ADB interface. Listed below is information about
several of these third-party products. You may also want to check the trade
journals for other types of ADB input devices.
A+ Mouse and A+ Mouse ADB from Mouse Systems Corp.
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A+ Mouse is an entirely electronic and consists of no moving parts. It uses
its own mirror-like pad to reflect a tiny beam of light to track movement. It
has exceptional digital cursor control for greater speed, accuracy, and
reliability.
QuickStick and QuickStick ADB from Kraft Systems, Inc.
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QuickStick combines the cursor response of a mouse with the speed and
convenience of a joystick. As such, it is a dual-purpose device allowing
cursor control with joystick design and functions.
Trackball ADB from Kraft Systems, Inc.
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The Trackball ADB connects to any Apple Desktop Bus port and works with all
"mouseable" software. Sensitivity is adjustable to match a user's individual
preference. The Trackball includes drag and double-click buttons. An optional
foot pedal provides total one-handed control.
Turbo Mouse Plus and Turbo Mouse ADB from Kensington Microware, Ltd.
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Turbo Mouse is an input device that puts the mouse ball on the top rather than
on the bottom like a standard mouse. The heart of the Turbo Mouse is a
patented technology called "optical levering". This opti-mechanical technology
eliminates virtually all moving parts with the exception of the bearings
required to support the trackball. This increases the precision of the Turbo
Mouse and Turbo Mouse ADB to 200 counts per inch, as well as increases their
reliability.
The Turbo Mouse has an automatic acceleration feature that senses the speed at
which a user is working and moves the cursor further as the mouse ball is moved
faster.
Two buttons are included, which allow for either right- or left-handed use. One
button serves as a regular click button; the other is a click lock. A user
controls which is which by setting a DIP switch hidden in the back of the unit.
Turbo Mouse ADB also offers a unique "chording" feature that is activated by
pressing both buttons simultaneously. By adjusting the DIP switch on the back
of the Turbo Mouse ADB, a user can have it do one of seven functions: New,
Open, Close, Save, Print, Quit, or Undo.
Turbo Mouse Plus is compatible with a Macintosh and Macintosh Plus. Turbo Mouse
ADB is compatible with a Macintosh SE and Macintosh II.