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Thanks for the Memory
Jul. 10th, 2006 11:58 pmAccording to this BBC story, a new magnetic memory chip could revolutionise the way we store data. It uses a magnetic charge to keep data reliably, even when the computer is powered down.
So what? I hear you say. We've had Flash memory for years, so what's new here?
Well, Flash has two problems. It is relatively slow, and it can only be rewritten a finite number of times. As a result, it has never really challenged the humble hard disk for long term high capacity storage
MRAM, as it is called, gets around both of these problems, so it could represent a viable alternative to the hard disk.
Now I've been predicting that solid-state device would replace hard disks since my late teens. However, I have never ceased to be amazed by the inginuity of hard drive designers. Although they still work on much the same principles as the first units IBM built over 50 years ago, they are a fraction of the size and cost, yet store thousands of times more, and are far faster and more reliable.
And given the current chips store half a megabyte (by an amusing coincidence, the same amount as the first IBM drives). So I don't think the hard disk has anything to worry about just yet.
Of course, if you had enough money, you could p[robably string a few thousand of these together to make a usable solid state drive, and it probably wouldn't cost you too much more than the original IBM drive.
The current chips will be very useful in mobile devices, but we really need to scale capacity into the Gigabytes range before it's likely to make an impact into PCs. Then, loading the OS and essential files onto one to save time. This could prove useful for installing the OS on for faster booting.
People won't abandon their hard drives for devices which store less and cost an armand a leg. But the writing is on the wall for the hard drive, and the writing says "your days are numbered!"
So what? I hear you say. We've had Flash memory for years, so what's new here?
Well, Flash has two problems. It is relatively slow, and it can only be rewritten a finite number of times. As a result, it has never really challenged the humble hard disk for long term high capacity storage
MRAM, as it is called, gets around both of these problems, so it could represent a viable alternative to the hard disk.
Now I've been predicting that solid-state device would replace hard disks since my late teens. However, I have never ceased to be amazed by the inginuity of hard drive designers. Although they still work on much the same principles as the first units IBM built over 50 years ago, they are a fraction of the size and cost, yet store thousands of times more, and are far faster and more reliable.
And given the current chips store half a megabyte (by an amusing coincidence, the same amount as the first IBM drives). So I don't think the hard disk has anything to worry about just yet.
Of course, if you had enough money, you could p[robably string a few thousand of these together to make a usable solid state drive, and it probably wouldn't cost you too much more than the original IBM drive.
The current chips will be very useful in mobile devices, but we really need to scale capacity into the Gigabytes range before it's likely to make an impact into PCs. Then, loading the OS and essential files onto one to save time. This could prove useful for installing the OS on for faster booting.
People won't abandon their hard drives for devices which store less and cost an armand a leg. But the writing is on the wall for the hard drive, and the writing says "your days are numbered!"
