Users can dress up their Apple II program with a simple tone subroutine to direct attention to error messages and other items of importance.
From BASIC, you simply need a Call -1050 ($FBE6). This will produce a 1·000 cycle tone to be emitted from your computer.

![Virtual ][ Emulator for Mac Updated](https://www.callapple.org/wp-content/uploads/2021/02/VirtualII.jpg)













