A collection of icons that C-chan originally created for the now-removed List of OS-tan Characters in Wikipedia. These were later reused in the OS-tan Wiki.

The characters depicted (from left to right, top to bottom) are:

Mac System 1
Mac System 3
Mac OS8
Mac OS7
Mac OS9.2
Mac OSX 10.3 (Panther)
Mac OSX 10.1 (Puma
Mac OSX 10.0 (Cheetah)
Mac OSX 10.2 (Jaguar)
Mac OSX 10.4 (Tiger)
Mac OSX 10.5 (Leopard - obsolete version
Windows 3.1
Windows 95 OSR 2.5
Amiga

The icons with usable source files can be batch-downloaded from here:

[link]