Mac System Software 2.x

Mac System Software 2.0 is a version of the Mac System Software released by Apple on 1985-04. It includes support for AppleTalk, and showcases this by supporting Apple's LaserWriter that utilizes it and a more minimal version of the Finder called, MiniFinder. Later updates for this version also introduced support for the Hierarchical File System (HFS), intended to support a hard drive.

Builds
RTM

2.1