OSGallery is a gallery-like application which collects GUI operating systems as well as classic application programs, ranged from Mac OS 1.0 to the latest Mac OS X, from Mircrosoft Windows 1.0 to Windows 8. It presents you screen shots and introductions from different versions. In here, you can look back the development history of classic operating systems and application programs which shows you the past and recalls you the deep memory. Many people will be thrilled by those familiar scenes. Updated information will be coming soon. Enjoy yourself here.