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About NORD-10/S and NORD-50 cpus: "These CPUs are used in ND 1100/S, ND 1200/S, ND 1300/S and ND 1400/S systems. Includes cabinet and power supply for CPU, memory, device interfaces, power fail interrupt, and automatic restart. Systems with 8 Kw/18bit MOS memory memory modules and ND 140 Multiport Memory have memory parity check. Systems with 32 Kw/21 bit memory modules and ND 143, ND 144 or ND 146 Multiport Memory have automatic error correction.

Note that ND 1200/S systems using 32 Kw memory modules do not require multiport memory because memory modules are mounted in the CPU rack."[1] --Torfinn (talk) 21:49, 19 April 2014 (CEST)


  1. Norsk Data Document ND–30.001.01A NORD-10/NORD-50 OPERATOR'S GUIDE printed May 1982