Tag: DOS 4.1

DOS 4.1 For the Apple II

Hidden in the wings of the Apple II world has been a gem of an operating system re-build, DOS 4.1. The new DOS is a complete re-work of DOS 3.3 from the perspective of retired Raytheon engineer and former Sierra On-Line developer, Walland Philip Vrbancic. Changes in DOS 4.1 Included in this new version of […]

Virtual II Version 9.1 Released

The Virtual II emulator has been updated. The penultimate Apple II emulator for Mac OS X, Virtual II has a number of new features and changes including the following: Disk drives can be configured with a “read only” switch. While the virtual machine runs, just flip the switch to “on” to prevent the disk from […]