Mbé vs Mazyr

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In computer science, group coded recording or group code recording (GCR) refers to several distinct but related encoding methods for representing data on magnetic media. The first, used in 6250 bpi magnetic tape since 1973, is an error-correcting code combined with a run-length limited (RLL) encoding scheme, belonging into the group of modulation codes.

The others are different mainframe hard disk as well as floppy disk encoding methods used in some microcomputers until the late 1980s. GCR is a modified form of a NRZI code, but necessarily with a higher transition density.

Source: Wikipedia

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Mazyr (Belarusian: Мазыр, pronounced [maˈzɨr]; Russian: Мозырь Mozyr [ˈmozɨrʲ], Polish: Mozyrz , Yiddish: מאזיר) is a city in Gomel Region of Belarus on the Pripyat River about 210 kilometres (130 miles) east of Pinsk and 100 kilometres (62 miles) northwest of Chernobyl; it is located at approximately 52°03′N 29°15′E. The population is 111,770 (2004 estimate). The total urban area including Kalinkavichy across the river has a population of 150,000.

Mazyr is known as a center of oil refining, salt extraction, machine building, and food processing in Belarus. It is home to one of the largest oil refineries in Belarus, pumping out 18 million metric tons per year. The Druzhba pipeline carries crude oil from Russia splitting in two at Mazyr. One pipeline branch is directed into Poland and the other one to Ukraine.

Source: Wikipedia