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This article is about the Galaxy Tab series. For the original model known as the Samsung Galaxy Tab see Samsung Galaxy Tab 7.0.The Samsung Galaxy Tab is a line of upper mid-range Android-based tablet computers produced by Samsung. The first model in the series the 7-inch Samsung Galaxy Tab was first introduced on 2 September 2010 at the IFA in Berlin. Since then there have been several models released including models with 7.7 8.9 and 10.1-inch displays.