ViOS
ViOS (Visual Internet Operating System) was a client-server software system designed by Julian Lombardi in the mid-1990s and built by a team he led at ViOS Inc. from 1999-2001 as a way of spatially organizing all Internet-deliverable resources (including web pages) into a massively-scaled multiuser 3D environment with users of the system represented as customizable avatars. The basic concept behind the "ViOS 3D Internet Viewer" was to take the virtual world of the entire Internet and adapt it to a physical representation of large virtual landscape, complete with mountains, rivers and cities. This approach was taken because of the belief that virtual landscapes resembling our physical world are more conducive to exploration and social interaction than the flat and abstracted world of the current document-based Internet
