Seagate doesn’t like the words decimal and binary, especially in the same sentence. The definition of each these words is costing the hard-drive manufacturer some serious money, and it’s all to do with quoted hard-drive capacities (decimal) versus operating systems’ interpretation of file sizes (binary).
Trouble is, hard-drive manufacturers quote drive capacity in the decimal (base 10) format. Now, one kilobyte, when evaluated in decimal, intimates 1,000 bytes (10 to the power 3) and one gigabyte intimates 1,000,000,000 bytes, and there’s nothing logically incorrect about that.
However, operating systems have historically calculated capacity in binary terms, so base 2, derived from the method by which computing memory is addressed. Taking this line of thought and extrapolating outwards, one ‘kilobyte’ as your operating system sees it, would constitute 1,024 bytes (2 to the power 10), and one ‘gigabyte’ 1,073,741,824 bytes (2 to the power 30). It’s clear to see that as the capacities increase in orders of magnitude, the difference between decimal and binary interpretations grow exponentially larger: a binary ‘kilobyte’ is 2.4 per cent larger than a decimal, and a binary gigabyte is 7.3 per cent larger.
Full Story @ Hexus.Net