Holographic data Storage PPT
Holographic data Storage PPT
This ppt contain Holographic data Storage PPT power point presentation, slide show
HOLOGRAPHIC DATA STORAGE
What Is Holographic Storage? Why Holographic Storage? What Is A Hologram?
How Hologram is made ? Components
How a holographic memory
Advantages Comparison Applications Future
• The storage of information and data has been an important issue since
men first drew pictures on the walls of caves. The methods of storing data have changed over the years, especially now that we have CD, DVD, HDD.
• Scientist Pieter J. van Heerden first proposed the idea of holographic
(three-dimensional) storage in the early 1960s.
• Holographic memory is developing technology that has promised to
revolutionalise the storage systems.
• Holographic data storage is a volumetric approach.
3. What Is Holographic Storage?
· Holographic storage is the computer storage that uses laser beams to
store data in 3 dimensions.
· Holographic Storage is an optical technology that allows 1 million
bits of data to be written or read in a single flash of light. · Holography records through the full depth of the medium.
· Holography enables transfer rates significantly higher than current
optical storage devices.
4. Why Holographic Storage?
· Three dimensional data storage has the potential to store more data in
a smaller space and at a quicker speed.
· Parallel access to data i.e. Multiplex data pages in one location. · Fast data transfer rates.
· Competitive with other optical technology.
· Thousands of holograms can be stored in the same location
throughout the entire depth of the medium.
5. What makes it Different?
In addition to storing larger amounts of data than other disc-based media, holographic versatile discs access the data much faster as well.
CD: 1200 kbps/sec
DVD: 10.5 Mbits/sec Blu-ray: 36.5 Mbits/sec
HVD: 1 Gbps/sec = 1024 Mbits/sec
Speed comparison (read and write)
6. What Is A Hologram?
• A three-dimensional image
formed by the interference of light beams from a laser.
• The intersection of two beams
creates an interference pattern of bright and dark regions.
bright and dark regions
7. How Hologram is made ?
8. Hologram Recording Process
9. COMPONENTS OF A HOLOGRAPHIC
• Blue-green argon laser • Beam splitters • Mirrors
• LCD panel (SLM) • Lenses
• Lithium-niobate crystal or photopolymer • Charge-coupled device (CCD) camera
10. How a holographic memory works
• Entire page of data can be retrieved quickly and at one time. • Offers storage of 1TB of data in a sugar cube sized crystal. • It offers high density storage.
• Low Scatter: Low levels of noise in data recovery
• It transfer rate is so high that a person can easily load the required
• Resistance to damage – If some parts medium are damaged, all
information can still be obtained from other parts.
• Efficient retrieval – All information can be retrieved from any part of
VIDEO ON DEMAND PORTABLE COMPUTING
MULTIMEDIA CONSUMER AUDIO\VIDEO
16. THE FUTURE
Although standards were set in 2010, as previously mentioned,
HVDs are still not being produced. This is largely due to price problems, although, as with any new technology, the price of the HVD will continue to plummet as the hardware becomes more streamlined and research and development costs are reduced.
Holographic data storage is a convenient and effective way of data
This storage technique is rapidly gaining attention because of its
capacity (GB to TB) and high speed data storage.
Holographic data storage will help to create a new tapeless era in the
video production and broadcast industry.
No other storage technology under development can match
holography’s capacity and speed potential.
Finally, Holography could provide a unique hardware device for
searching databases rapidly.
Last Updated on 13 May 2016