Newton Glossary

An almost definitive guide to Newton-related terms and trivia.

Busy Cursor

A graphical indicator automatically displayed by the system while it is temporarily unable to process user input. Often represented by an icon of a watch or clock, the busy cursor in Newton OS is represented by an depiction of the Newton logo.

Screenshot of the Busy Cursor

Colloquially known as the lightblub icon or the something’s happening icon.


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