System 2.0 / Finder 1.1g (Macintosh System Software 0.1)
The desktop looks the same as System 1.0 / Finder 1.1g Changes- Bug fixes with this maintenance release. Choose Printer desk accessory was available. Here is the version number for the System: The Choose Printer command produced this:
The Mac 512 is a gYounk design & programmed site.