Models 1001, 1002, 1003 were of original Polish construction. Models 1304 and 1305 were licensed from ICL. The last model was 1325 based on two models from ICL.
The computers were build in Elwro manufacturing plant, which was closed in 1989.
The last Odra was shut down on July 18 2003 after working 29 years without a failure.
The name comes from Odra river that flows through Wroclaw.