Mbé vs Rideau Lakes

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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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Rideau Lakes is a township located within Leeds and Grenville United Counties in Eastern Ontario, Canada. The township was incorporated on 1 January 1998 by amalgamating the former townships of North Crosby, South Crosby, Bastard, South Burgess and South Elmsley with the village of Newboro.Rideau Lakes lies in the northwest corner of Leeds and Grenville, and is geographically the largest municipality in the county. Farming, tourism, and service industries form the backbone of the local economy.

The many tourist attractions in Rideau Lakes, including historic trails, the stone arch dam at Jones Falls, and the Rideau Waterway, are also an important part of the township's economy. Rideau Lakes has 500 km (310 mi) of shoreline, excluding the Rideau Waterway. The waterway itself traverses the township, from the towering granite cliffs near Chaffeys Lock to the more gentle and pastoral areas of the Lower Rideau Lake.

Source: Wikipedia