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Terabyte-capacity disk drives will soon be available. A terabyte is 1,000 (actually, 1,024) gigabytes; the PC on your desk probably has 100 or so gigabytes in it; the biggest iPod nano has eight gigabytes. …. The last time the disk drive crossed such a threshold was in 1991, when the first gigabyte drives were introduced. Back then, all that people used computers for was actual work — spreadsheets and such — and it was hard to imagine why anyone would need so much storage. News accounts noted that a gigabyte would store 1,000 copies of “Gone With the Wind,” without ever explaining why you would want to. Those first gigabyte drives were priced in the neighborhood of $2,000, which on Read More ›