ADT 4000
Also called Analogová a Digitální Technika.It was manufactured from 1973 to 1979 by ZPA Trutnov. The computer was inspired by or was successor to HP 2116.
Compatible with Hewlett Packard 2100
Use EC 5069 as a disc
e.g. the control system of the Tušimice and Dětmarovice power plants