ESER

EC 1035

EC 1055

ESER is an abbreviation for Einheitliches System Elektronischer Rechenmaschinen (German for standardized system of electronic computers), a term used in the GDR for ES EVM computers produced according to a treaty between the members of Comecon signed on 23 December 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 (which is Cyrillic for "ES") followed by a four digit number, e.g., EC 1055, often also called ESER (e.g., ESER 1055). Robotron also produced minicomputers, whose names started with "K" (Kleinrechner for "minicomputer").

The ESER systems were in operation in GDR and later in the new states of Germany until 1995.

GDR manufacturing

• Robotron

• EC 1834, 1835 (IBM PC XT compatibles)
• EC 1040, 1055, 1055M, 1056, 1057
• EC 7927
• K 1001, 1002, 1003, K 1510, K 1520, K 1820, K 5103, K 5201, K 8913, K 8915, K 8924
• CM 1910

• 
  EC 1834 with monitor K 7229.25 and printer K 6313
• 
  EC 1835 prototype with monitor K 7233

• 
  EC 1040
• 
  EC 1055

• 
  K 8913
• 
  K 8915
• 
  K 8924

• 
  CM 1910

Hungarian manufacturing

• Videoton

• EC 1010, 1011, 1012

See also

• History of computer hardware in Eastern Bloc countries

External links

• Technical data of some ESER computers by Robotron
• Technical data of some ESER computers by Videoton
• Some photos of a ESER Mainframe
• Overview of different ESER Mainframes in German (page 6, PDF)
• Overview of different ESER Computers in Russian (with pictures)