Setif vs Mbé

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Sétif (Arabic: سطيف‎, Kabyle: Sṭif) is an Algerian city and the capital of the Sétif Province. It is one of the most important cities of eastern Algeria and the country as a whole, since it is considered the trade capital of the country. It is an inner city, situated in the eastern side of Algeria, at 270 kilometers east of Algiers, at 131 km west of Constantine, in the Hautes Plaines region south of Kabylie.

The city is at 1,100 meters of altitude. The city was part of the ancient Berber kingdom of Numidia, the capital of Mauretania Sitifensis under the rule of the Roman Empire before becoming Muslim during the Muslim conquest of the Maghreb. It is considered as the starting point of the May 8th, 1945 protests, which was a crucial factor to the start of the Algerian War.

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