The National Laboratories tend to belong to the category of very large scale scientific computing installations. They are frequently operating on the frontiers of the computing art, but many of the problems they face become, all too soon, the problems faced by more conventional installations.In this session, speakers from three of the National Laboratories will address such problems as the tailor-made, “mix-and-match” local network, the search for very large on-line storage capacity, and technology forecasting in the Department of Energy.