PenLite

PenLite was the codename of a cancelled Macintosh PowerBook Duo-based tablet computer created by Apple Computer, Inc. in 1993 around the same time as when the Newton MessagePad was developed. Unlike the MessagePad, it was meant to be a complete computer rather than a PDA, its operating system was planned to ran the classic macOS. PenLite was designed by an Apple engineer named Gary L. Embler. 
Much like the MessagePad, the PenLite features a stylus-based interface, a system that allows customers to navigate their content via a stylus. It supports Powerbook Duo accessories and docks.
Due to its similarity to the Newton MessagePad, and to avoid market confusion, Apple canceled the project in 1994.
== Formats ==
Apple's Penlight was powered by the Motorola M68HC05 microcontroller, it relies on several backlight power components including a power supply controller IC based on Linear Technology to power its CCFL backlight functionality. Apple once collaborate with Jim Williams of Linear Technology to develop a backlight power supply having low electromagnetic interference with the digitizing tablet sensor. 
== See also ==
*Wizzy Active Lifestyle Telephone, a similar tablet-like "phone companion" being developed jointly by Apple and BellSouth from 1991 to 1993. It was superseded by the Newton.
*MessagePad, a line of personal digital assistants developed by Apple for the Newton platform.
== References ==
== External links ==
*Exclusive: New pics of Apple's unreleased tablet prototype from 1992 - and the Mac that flew on the Space Shuttle by Mark Prigg, Stuff. 2013-10-21.
*PenLite at Wikipedia
Category:Cancelled tablet computer