Corvus Systems Inc, San Jose, California, says it will support all the new IBM Personal System/2s under the PC/NOS network operating system – PC-DOC 3.3 immediately, OS/2 when it arrives in 1988. As well as supporting all IBM’s new adaptor cards, it will provide interface boards to connect PS/2s to its Omninet twisted pair network. Current boards of course already support bastard Model 30, which is properly neither a Personal Computer nor a Personal System, and new boards for the Micro Channel architecture are on the way. Key feature of six-month-old PC/NOS is that it does not need a file server, so reducing the cost per node, although it does support file server operation. It uses standard PC-DOS commands and allows transparent sharing of all resources on the net, including drives, printers, clocks, volumes, directories and files, and provides 100 levels of security for appropriate network administration and management.