Betim vs Mbé

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Betim is a city in Minas Gerais, Brazil. It is located at around 19°58′4″S 44°11′52″W. The city belongs to the mesoregion Metropolitan of Belo Horizonte (BH) and to the microregion of Belo Horizonte. It is the fifth largest city in Minas Gerais and one of the 50 largest cities in Brazil.

Betim is home to a Petrobras's oil refineries, as well as Fiat's largest factory, which opened in 1976. The city has an important role not only in the state's economy, but in the whole country's as well.

Source: Wikipedia

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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