Touba vs Mbé

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Touba (Hassaniya Arabic: Ṭūbā, 'Felicity'; Wolof: Tuubaa) is a city in central Senegal, part of Diourbel Region and Mbacké district. With a population of 529,176 in 2010, it is the second most populated Senegalese city after Dakar.

It is the holy city of Mouridism and the burial place of its founder, Shaikh Ahmadou Bàmba Mbàcke. Next to his tomb stands a large mosque, completed in 1963.

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