They absolutely are Argus 700's, and a lot of the design of the systems is in the public domain. > The computer system consists of a network of computer nodes,

They absolutely are Argus 700's, and a lot of the design of the systems is in the public domain. > The computer system consists of a network of computer nodes, based on the Ferranti Argus 700 range of computers, assigned to each reactor unit, except where common station facilities are required. For each reactor unit, the computer system provides both data processing and automatic control functions. For essential data capture, control and display to the CCR operators, the processor hardware is duplicated. These are termed Level 1 systems and are shown in Figures 1 and 2. Single processor systems which collect data not considered essential for continued unit operation are termed Level 2 systems. Figure 3 illustrates the Level 2 computer system for both units. Torness NFS probably has the most complex computer configuration of any operating nuclear power station. The auto control "supersystem" consists of, per reactor, ten input multiplexing computers ("muxes"), eleven control computers (CCOI, CCO2 to CCI 1) and a dual online/ standby supervisory computer ("CS"). Each of these computers is a node in the hierarchical control supersystem shown schematically in Figure 2. https://inis.iaea.org/collection/NCLCollectionStore/_Public/26/077/26077326.pdf https://inis.iaea.org/collection/NCLCollectionStore/_Public/... http://www.wjhill.net/Torness.pdf http://www.wjhill.net/Torness.pdf