Ferranti Argus 400 computer, 1969. Consists of 4 processing units, operator's desk, operator's and programmer's manuals, Teletype, Westrex tape reader/writer, ICT TR6 tape reader and two boxes of circuit boards.Ferranti Argus 400 computer, 1969 used at Wiggins Teape paper production plant in Dartford, including a small series of Routine Maintenance and Maintenance Sheets completed by Ferranti Engineer. Ferranti Argus 400 computer 1969