ESER
ESER is an abbreviation for Einheitliches System Elektronischer Rechenmaschinen, a term used in the GDR for ES EVM computers produced according to a treaty between the members of Comecon signed on December 23, 1968 covering the development of a standardized computing system.
ESER was also the name for computers developed by this standard. Most ESER Computers were named ЕС followed by a four digit number, e.g., EC 1055, often also called ESER. Robotron also produced minicomputers, whose names started with "K".
The ESER systems were in operation in GDR until 1995.GDR manufacturing
