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Odra (computer)

Odra was a line of computers manufactured in Wrocław, Poland.

The production started in 1959–1960. Models 1001, 1002, 1003, 1013, 1103, 1204 were of original Polish construction. Models 1304 and 1305 were functional counterparts of ICL 1905 and 1906 due to software agreement. The last model was 1325 based on two models from ICL.

The name comes from the Odra River that flows through the city of Wrocław

The computers were built at the Elwro manufacturing plant, which was closed in 1989.

ODRA-1002 were capable of only 100-400 operations per second.

In 1962, Witold Podgórski, an employee of Elwro, managed to create a computer game on a prototype of ODRA-1003; it was an adaptation of a variant of Nim, as depicted in the film Last Year at Marienbad. The computer could play a perfect game and was guaranteed to win. The game was never distributed outside of the Elwro company, but its versions appeared elsewhere. It was probably the first Polish computer game in history.

The operating system used by the ODRA-1204 is called SODA. It was designed to work on a small computer without magnetic storage and can run simultaneous loading and execution of programs.

An ODRA 1204 computer was used by a team in Leningrad developing an ALGOL 68 compiler in 1976. The ODRA 1204 ran the syntax analysis, code generation ran on an IBM System/3601

Up until 30 April 2010 there was still one ODRA 1305 working at the railway station in Wrocław Brochów. The system was shut down at 22:00 CEST and replaced with a contemporary computer system. Few Odras are placed on exhibition in museums and at least one is still operational and maintained by students of electrical school which created a fan club around the machine.

Odra (Kupa)

Odra is a river in central Croatia. It is long and its basin covers an area of . Its source is in the Žumberak mountain, southwest of Zagreb. It flows eastwards, passes south of Velika Gorica, then turns south-east, more or less parallel to the river Sava. It flows into the river Kupa near Odra Sisačka, just northeast of Sisak, also just before the Kupa joins the river Sava.

The upper flow of Odra has been significantly altered by humans, by the digging of the long canal Sava-Odra(-Sava) south of Zagreb, as a measure against flooding (first put to use in 1979).

Odra (magazine)

Odra (; Oder river in Polish) is a well-established and award-winning Polish monthly art and culture magazine which has the reputation of an opinion-maker. The magazine provides news and commentaries on art and culture in Poland and abroad.

Odra (Pisuerga)

The Odra is a river in Spain. Its springs are located to the north of Amaya mountain in the province of Burgos, from where it flows southward until reaching the Pisuerga River. The main tributary is the Brullés River.