Welcome to the GEOS for the Apple ][ Webpage. GEOS is a Graphical Environment Operating System for the Apple ][ computer and runs best on computer with the Apple ][ mouse attached. GEOS was published by Berkely Systems and in 2003, permission was received by A.P.P.L.E. to reproduce and re-distribute the manuals in digital format. These items are posted exclusively with the permission of BreadBox Software, the current owners of the GEOS licenses. While all items are free for download, they may not be posted on other websites.