The discovery of solid state disks

An interesting article reveals the secrets of technology at the basis of solid state disks, commonly known as SSD. The comparison with the conventional hard disk drives to the theory on their operation.

At first they cost a lot and their capacity was limited. Now the solid state disks (SSDs) are able to ensure excellent communication skills at a lower cost, much to involve several producers.

Apple, for example, has long SSD for the MacBook Pro, ideal for the speed you can achieve without using moving parts, making the notebooks and quieter while improving performance.

The solid-state drives have an access time to data much lower. In the SSD does not need to wait for a magnetic head reaches a certain sector of the disk to start reading the data, but just wait for a response from the highest performing memory cells.

As you read this comparison chart, the SSDs also have a life expectancy twice that of conventional hard disk drives. In contrast, the price / gigabyte is still quite high, if related to the hard drives we use normally.

The writing has compiled an interesting DinoxPc article examines the technology of SSDs, reveals their function in terms of electronic and logical analysis of what distinguishes them from the magnetic disk and what unites them.

In the article we read of two families of discs was used: the first group are those that allow you to store one bit per cell (SLC), while the second part of the models that store two bits per cell (MLC).

It seems like a trivial difference, but it allows the MLC to cram twice as much data compared to the SLC to the same size and production process, in spite of slow performance because the read-write operations are more complex.

This complexity translates into a smaller disk life, which is still more than enough for consumer use. That's why the MLC are used primarily in the commercial sector, leaving the industry and SLC applications that require speed and reliability at the highest levels.

An important component in an SSD going to affect the price of the final product is the controller, the component that directs all operations of reading and writing within the disc.

The controllers are the most popular products by JMicron, which during Computex 2009 has introduced a new cheaper model, which can reduce the cost of SSDs up to 50%. Even Intel does not mess around in this area, with products known for their high efficiency but also for the cost prohibitive.

For all investigations, so I refer you to the interesting article DinoxPc be reached at this address.

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