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25th June 2001 |
200 GB HARD DRIVE ANYONE? |
Brian Grainger |
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When I bought my PC just over 2 years ago it had a 10Gb hard drive. 20Gb was the top of the range. Now 60Gb is not uncommon. Within a couple of years a new technology, developed by IBM, looks set to make that look like chicken feed. IBM have developed antiferromagnetically-coupled (AFC) technology. This consists of a disk coating of a 3 atom layer of the element ruthenium between two magnetic layers. Ruthenium is a hard brittle metal. With an atomic number of 44 it occurs in the same periodic group as iron. IBM say this coating will allow packing densities of 100Gbits per square inch. The almost magical increase in packing density has sparked IBM to call the fine layer pixie dust! By 2003, IBM plans to have the technology in all its disk products. Their Travelstar notebooks currently have AFC disk drives with a packing density of 25Gbits per square inch. This results in a disk capacity of 48Gbytes. IBM expect to reach 200 Gbytes on notebook drives in the future. |
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