Newton

The Newton is a series of personal digital assistants developed by Apple Inc. from 1993 to 1998. The devices ran on Newton OS.

Development on the Newton platform began in 1987, and the first devices were released in 1993. Apple produced the MessagePad series and the eMate 300, and other companies also released devices running on Newton OS.

Newton was officially discontinued when Steve Jobs returned to Apple in 1998. It was replaced by the iPad in 2010.