Kurgan vs Mbé

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A kurgan (Russian: курга́н) is a type of tumulus constructed over a grave, often characterized by containing a single human body along with grave vessels, weapons and horses. Originally in use on the Pontic-Caspian steppe, kurgans spread into much of Central Asia and Eastern, Southeast, Western and Northern Europe during the 3rd millennium BC.The Russian noun, already attested in Old East Slavic, comes from an unidentified Turkic language, compare Modern Turkish kurğan, which means "fortress". Kurgans are mounds of earth and stones raised over a grave or graves. Popularised by its use in Soviet archaeology, the word is now widely used for tumuli in the context of Eastern European and Central Asian archaeology.

The earliest kurgans date to the 4th millennium BC in the Caucasus, and researchers associate these with the Indo-Europeans. Kurgans were built in the Eneolithic, Bronze, Iron, Antiquity and Middle Ages, with ancient traditions still active in Southern Siberia and Central Asia. Archeologists divide kurgan cultures into different sub-cultures, such as Timber Grave, Pit Grave, Scythian, Sarmatian, Hunnish and Kuman-Kipchak. Many placenames contain the word kurgan.

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