What is SSD (Solid State Drive)
Today, it is not only hard drive that is the big word when it comes to storage. SSD is an abbreviation you can learn first as last and that means many new benefits for your PC.
But first things first: SSD stands for Solid State Drive. The main physical difference between an SSD device and a standard hard drive is a hard disk consists of discs and read-write heads, plus a motor that spins the disc (or discs, if there are any).
A SSD device on its side, contains no moving parts. Instead contains an SSD device a special type of memory chips with rewritable cells that can retain data even when they are denied. Purely practical, you can often compare a SSD device with an overgrown memory stick.
Solid State Drive
What is a Solid State Drive ?
The original usage of the term solid-state refers to the use of semiconductor devices rather than electron tubes, but in this context, has been adopted to distinguish solid-state electronics from electromechanical devices as well. With no moving parts, solid-state drives are less fragile than hard disks and are also silent; as there are no mechanical delays, they usually employ low access time and latency.
Solid state is an electrical term that refers to electronic circuitry that is built entirely out of semiconductors. The term was originally used to define those electronics such as a transistor radio that used semiconductors rather than vacuum tubes in its construction. Most all electronics that we have today are built around semiconductors and chips. In terms of a SSD, it refers to the fact that the primary storage medium is through semiconductors rather than a magnetic media such as a hard drive.
SSD Advantages and Disadvantages
SSD devices have many advantages:
However, there are also some disadvantages:
SSD devices can use several different types of memory, respectively SLC (Single level cell) and MLC (Multi level cell). SCL has one bit of data per cell, while MLC technology involves multiple bit data per cell. MLC devices are cheaper to produce, but generally provide lower performance and higher energy consumption than SLC units.
The practical difference between the two memory types are durable, in practice, how many times each cell can input over before it starts to lose data.
Today, the MLC memory that are commonly use.
In addition to devices that are used internally in computers, the SSD devices in external format, in the same way as external hard drives. These connects easily to your PC with a cable.
Points to remember when buying SSD Device
What is important?
When buying a SSD device, it is certain things that determine what device you should go for. The most important thing you should look for:
SSD devices have a number of challenges to overcome before they probably will have as great a share of the market as regular hard drives.
One of the challenges is the storage capacity. Today you can find like SSD devices up to 250 GB commercially available devices up to 1 TB are released. Regular hard drives get up to 1.5 TB.
Development goes forward, however, in a fantastic pace, and we expect that the low storage capacity will not be any issue about a few years.
SSDs and Microsoft Windows: Windows is optimized for hard disk drives rather than SSDs. Microsoft created ReadyBoost to exploit characteristics of USB-connected flash devices, but Windows operating systems are not optimized for use of SSDs. Microsoft's latest OS Windows 7 which is still in beta, is optimized for SSDs as well as hard disks.
The other big challenge is cost. For a 250 GB SSD device, you can expect to pay over 6500 dollars. A standard hard drive with 500 GB of storage, you do not pay more than around 500 dollars for. Currently, it's already talk about the very high cost per GB if you choose to buy rather SSD hard drive.
SSD's Market Today
The market today
Several major manufacturers produce SSD devices. Intel, for example, launched 80 GB unit x25-M. Samsung is also on the hawks in SSD-race, and stepped up last year by launching a 128 GBs unit.
OCZ, Gskill, Sandisk, and Mtron is among the other manufacturers that have launched SSD devices.
Such development is today, it seems that the manufacturers will get a proper speed for the production of SSD units during the year to come.
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