3D Optical Data Storage PPT

3D optical data storage is an experimental storage technology is predicted to offer exponentially more storage capacity than today’s data storage technologies. Researchers have developed working 3D optical data storage devices, but the technology is not yet commercially available due to design issues that need to be addressed.

How 3D Optical Data Storage Works?

The easiest way to explain 3D optical data storage is to compare it to current DVD technology. DVD data storage operates in a 2D environment. Data is stored across the top of these disks and then that data is read by a laser. Multi-layer DVDs can even store data in different layers throughout the depth of the disc. The laser can then be focused on those layers to read that information. The problem with multi-layer DVDs is that they are limited to about 10 layers. When a laser is focused on one of those “deeper” layers, it has to travel through all the layers on top of that one. This causes interference and limits the number of layers that can be stored on a traditional DVD.3D optical data storage uses technology that allows more than 100 layers to be written on a disc that looks like a traditional DVD. This creates an exponentially larger data capacity in the same amount of space. There are estimates that 3D optical data discs will be able to store 5 terabytes of data or more.

Note – this is a very basic explanation of 3D optical data storage. If you’d like to see the gritty details, check out this Wikipedia page about 3D optical data storage.
For more detail explanation download 3D Optical Data Storage PPT. 

Future of 3D Optical Data Storage

The biggest hurdle for 3D optical data storage right now is making it commercially viable for the public. Although working prototypes have been developed, 3D optical data storage has a long ways to go before it becomes a useful data storage format. Multiple companies are working on 3D optical data storage, but it will still be a while before we see something hit the consumer market.

According to Wikipedia, there are three major technical difficulties that need to be overcome:

• The potential for data to be damaged by lasers that read the data
• The possibility of chemical reactions that damage data over extended periods of time
• Media that is easily damaged by lasers

We believe that it is inevitable for data storage to evolve into 3D technology of some sort. The next step up may not be 3D optical storage in particular, but it will be something similar. Technology firms are also working on a similar technology called “Holographic Data Storage.” It’s only a matter of time before something new hits the market.

Advantages and disadvantages of 3D optical storage

Advantages 3D Optical Data Storage 

• Durability. With proper care, optical media can last a long time, depending on what kind of optical media you choose. 
• Great for archiving. Several forms of optical media are write-once-read-many, which means that when data is written to them, they cannot be reused. This is excellent for archiving because data is preserved permanently with no possibility of being overwritten. 
• Transportability. Optical media are widely used on other platforms, including the PC. For example, data written on a DVD-RAM can be read on a PC or any other system with an optical device and the same file system. 
• Random access. Optical media provide the capability to pinpoint a particular piece of data stored on it, independent of the other data on the volume or the order in which that data was stored on the volume

Disadvantages 3D Optical Data Storage

• Reusable. The write-once-read-many (WORM) characteristic of some optical media makes it excellent for archiving, but it also prevents you from being able to use that media again. 
• Writing time. The server uses software compression to write compressed data to your optical media. This process takes considerable processing unit resources and may increase the time needed to write and restore that data.

Data storage technology is a constantly evolving field of study. From the first days of humans drawing on cave walls to today’s digital storage technology, people have yearned to store their technology in increasingly efficient manners. One day even 3D optical data storage will be remembered as a thing of the past.

Source:http://www.onlinedatastorage.net/3d-optical/

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