Mbé vs Irbid

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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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Irbid (Arabic: إرْبِد‎), known in ancient times as Arabella or Arbela (Άρβηλα in Ancient Greek), is the capital and largest city of the Irbid Governorate. It also has the second largest metropolitan population in Jordan after Amman, with a population of around 1,911,600. Irbid is located about 70 kilometres (43 mi) north of Amman on the northern ridge of the Gilead, equidistant from Pella, Beit Ras (Capitolias), and Um Qais, and approximately 20 kilometres (12 mi) south of the Syrian border. Irbid was built on successive Early Bronze Age settlements and was possibly the biblical Beth Arbel and the Arbila of the Decapolis, a Hellenistic league of the 1st century BCE through the 2nd century CE.

The population of Irbid swelled in the late 19th century, and prior to 1948 it served as a significant centre of transit trade.Irbid is the second largest metropolitan in Jordan by population after Amman. But as a city Irbid is the third largest one after Amman and Az Zarqa. The province of Irbid Governorate has the second largest population, and the highest population density in the kingdom. The city is a major ground transportation hub between Amman, Syria to the north, and Mafraq to the east. The Irbid region is also home to several colleges and universities. The two most prominent universities are Jordan University of Science and Technology and Yarmouk University.

Source: Wikipedia