Crysnet: a network of intelligent remote graphics terminals
Herbert Jacob Bernstein, Lawrence C. Andrews, Frances C. Bernstein · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1973
We will describe a group of intelligent remote graphics terminals forming a network for crystallographic computing. The terminals provide high resolution interactive graphics with batch mode access to the central facility via dial-up voice grade lines. They are used for the determination of molecular structures from X-ray and neutron diffraction data. There are three such terminals at present, one at Brookhaven National Laboratory, one at the Institute for Cancer Research in Philadelphia, and one at Texas A & M University. Each consists of a DEC PDPll/40 with card reader, line printer/plotter, disk, magnetic tape and Vector General 3D display. Communications are via 2000 band synchronous, half duplex lines using a CDC mode 4c protocol. The preferred central site is the Brookhaven National Laboratory Central Scientific Computing Facility with two CDC 6600s.