Mbé vs Upper St. Clair

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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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Upper St. Clair is a township with home rule status in southern Allegheny County, Pennsylvania, situated about 8 miles (13 km) south of Downtown Pittsburgh. It is known for being an affluent suburb with a nationally recognized school district. As of the 2010 census, the township population was 19,229. Around 9% of the township's area is dedicated to 14 parks and multiple fields, totaling approximately 733 acres.

The township has six borders with neighboring communities, including South Fayette Township to the west, Bridgeville to the northwest, Scott Township and Mt. Lebanon to the north, Bethel Park to the east, and Peters Township in Washington County to the south.

Source: Wikipedia