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TechnologySurprise 4/5Difficulty 3/5Reviewed on September 18, 2026

The first one gigabyte hard drive weighed over two hundred and fifty kilograms.

Why it is true

Released by IBM in nineteen eighty, the three thirty model was the size of a refrigerator and had to be installed in data centres with special air conditioning due to the heat it generated.

Source: IBM

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