System 2.0 was released in April 1985, nearly a full year after Apple released its previous software update for the Macintosh.
The most significant improvement System 2.0 provided was performance. Startup time was reduced by 20%. Also, the ImageWriter received a new icon.
Much of the work was done in the Finder; as was reflected by a leap in the version number from 1.1 to 4.1 (it took another three years for the Finder and System version numbers to become realigned). The disk icons lost the black shutter in favour of a nearly fully white look.Apple removed the Finder menu commands Put Back and Close All. New Finder commands included New Folder (which finally ended the Empty Folder saga), Print Catalogue, Use MiniFinder and Shut Down.
In list views, file icons were added next to the text, unlike in the System 1 era.
However, a problem still remained with rebuilding the Desktop. Because HFS was not yet introduced, a desktop rebuild meant that all folders were removed and all files ended up directly inside the root of the disk. MFS (which was the filing system used then) also did not support nested folders.
System 2.0 | System 2.1