They werent designed for secure erasure. The article says that varying methods of erasing the drives such as DoD 8 pass still leaves atleast 1% of data that can be recovered.
Presumably this is because of the optimization techniques that SSD's use to achieve high performance and increase lifespans.One of these measures is having 64GB of flash on a 60GB SSD, leaving extra flash to act as for intesive operation and wear leveling. Since the disks werent designed for secure erasure, no method erases the extra space, and what conventional program do is just trigger the controller to sometime overwrite some of the extra flash space.
This isnt endemic to SSD technology, just the way the controllers are implemented. At some point controller will probably support this secure erase of all flash.
TL; DR : new tech doesnt have all the features, can recover atleast 1% of your data until better tech comes out
Have no fear! That pesky drywall is no problem for 5GHz!
The basement on the other hand.... well I guess that why they will probably leave the mixed mode in.
But seriously theres definite benefits to having more varied spectrum available.
Gotta disagree with the example though. You must have had some bad experience with focusable lasers or a laser that was poorly manufactured. Green laser >20mw are fairly easy to make out on a while reflective surface flying through the night, and they at most cover the section of the tail. You can even see the dispersion of the laser beam as it travels if the laser is powerful and the night is really dark.
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Presumably this is because of the optimization techniques that SSD's use to achieve high performance and increase lifespans.One of these measures is having 64GB of flash on a 60GB SSD, leaving extra flash to act as for intesive operation and wear leveling. Since the disks werent designed for secure erasure, no method erases the extra space, and what conventional program do is just trigger the controller to sometime overwrite some of the extra flash space.
This isnt endemic to SSD technology, just the way the controllers are implemented. At some point controller will probably support this secure erase of all flash.
TL; DR : new tech doesnt have all the features, can recover atleast 1% of your data until better tech comes out
Have no fear! That pesky drywall is no problem for 5GHz! The basement on the other hand.... well I guess that why they will probably leave the mixed mode in. But seriously theres definite benefits to having more varied spectrum available.
Gotta disagree with the example though. You must have had some bad experience with focusable lasers or a laser that was poorly manufactured. Green laser >20mw are fairly easy to make out on a while reflective surface flying through the night, and they at most cover the section of the tail. You can even see the dispersion of the laser beam as it travels if the laser is powerful and the night is really dark.
However, if the increase R&D you mentioned increases exponentially to get that 4x increase, then the usefulness of using qubits is still in the air.