Rainbow technology allows for massive data storage on ordinary paper or plastic sheets. It uses colored geometric shapes and symbols to represent data rather than binary, allowing 450GB to be stored on an A4 sheet. The data is encoded and printed densely, then retrieved by scanning and decoding the colors. While offering extremely low-cost and biodegradable storage, issues around color fading may lead to data loss over time.

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CONTENTS
•INTRODUCTION
•HOW IS IT POSSIBLE?
•PROCESS OF STORING DATA
•IMPLEMENTATION & PROCESSING
•COMPARASION WITH OTHER STORAGE DEVICES
•ADVANTAGES
•DISADVANTAGES
•CONCLUSION

2. INTRODUCTION
 Rainbow technology a breakthrough enable us to store up
to 450 GB on just a piece of paper.
 Rainbow Technology is a developed by paper-based data
storage technique .
 Rainbow Storage is a group of techniques to store digital
data in colors, color combinations and symbols.
 known as rainbow format and a rainbow picture will be
generated. 2

3. INTRODUCTION (CONT)
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o With the help of Rainbow system we can watch full-length
high-definition videos.

4. HOW IS IT POSSIBLE?
Data stored in rainbow format on an ordinary paper.
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5.  It uses geometric shapes such as squares and hexagons to
represent data patterns.
 Instead of the usual binary method that uses ones and zeros to
represent data.
 Files such as text, images, sounds and video clips are encoded
in "rainbow format" as colored circles, triangles and so on.
 And printed as dense graphics on paper at a density of 2.7GB
per square inch.
 By printing much higher data encoded capacities can be
achieved.
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HOW IS IT POSSIBLE? (cont)

6.  The retrieval of data by scanning the paper or the plastic
sheet containing the data into a scanner and reading it
over monitor .
 Instead of using 0s and 1s, we use color dots where each
color dot can represent 8 bits (1 byte).
 The rainbow picture will be highly compressed and can be
represented in any color medium.
 "Although environmental light differences and color
shading is a problem, it can overcome up to a certain limit
by using efficient mapping functions". 6
HOW IS IT POSSIBLE? (cont)

7. PROCESS OF STORING
DATA
 Printing at 1,200 DPI leads to a theoretical maximum of
1,440,000 colored dots per square inch.
 If a scanner can reliably distinguish between 256 unique
colors, the maximum possible storage is approximately
140 MB for a sheet of A4 paper.
 If the scanner were able to accurately distinguish between
16,777,216 colors (24 bits, or 3 bytes per dot), the capacity
would triple claims of several 100 GB.
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8. At least one of three things must be true for the claim to
be valid:
 The paper must be printed and scanned at a much higher
resolution than 1,200 DPI.
 The printer and scanner must be able to accurately produce
and distinguish between an extraordinary number of distinct
color values
 The compression scheme must be a revolutionary lossless
compression algorithm.
Process of Storing data (cont)
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9. Process of Storing data (cont)
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Level 1-Data to Data Picture:
Data to Data Picture conversion takes place in four steps.
• A chunk of data bits are taken from data source , which is known
as a word.
• The word can be converted into a value that will be unique for
each different combination of bits.
• The value then passes through error checking mechanisms.
After producing error correction bits, it will attach to the
data picture.
• Thus the final output (Data Picture) will be generated.

10. Process of Storing data (cont)
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Level-2 Data Picture to Data:
Data Picture to data conversion uses just the reverse process.
• Data Picture is taken as an input.
• Value mapping functions are used for mapping the
arrangements done on actual data.
• Some errors that occur due to colour fading can also be handled
at this stage. The values are passed through error correction
machine.
• Then the value to word conversion takes place. The encoded
Data Picture is hence decoded into the result data which will be

11. 11
WORKING OF RT

12. IMPLEMENTATION REQUIREMENTS
Discs can now be developed from plastic paper
too which will be able to hold 450 GB of data. 12

13.  The developer is simultaneously moulding the technology into
'Rainbow Cards' which will be of SIM card size and store 5 GB
of data equivalent to three films of DVD quality.
 As 'Rainbow Cards' will become Popular, Rainbow Card
Readers will replace CD drives of mobile phone and computer
notebooks .
 Large scale manufacture of the Rainbow card will bring down
its cost to just 50 paise.
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14. This technology is based on two principles:
 Principle I
“Every color or color combinations can be converted
in to some values and from the values the colors or color
combinations can be regenerated”.
 Principle II
“Every different color or color combinations will
produce different values”.
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15. COMPARISON WITH OTHER STORAGE DEVICES
CD, DVD’s a thing of past.
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16.  Currently, of the several options available for data storage,
DVDs are the best mode, but are yet expensive.
 While a CD costs Rs. 15, his paper or plastic-made RVD will cost
just about Rs. 1.50 and will even have 131 times more storage
capacity.
 Using this technology an A4 sheet of paper could store 450 GB
of data. In comparison, a DVD can store 4.7GB of data.
 Paper is, of course, bio-degradable, unlike CDs or DVDs. And
sheets of paper also cost a fraction of the cost of a CD or DVD.
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17. ADVANTAGES
 The extremely low-cost technology will reduce the cost of
storage and provide for high speed storage too.
 Files in any format like movie files, songs, images, text can
be stored using this technology.
 The biodegradable nature of the storage devices would do
away with the e-waste pollution.
 The four main storage devices made using this technology
are RVD, Disposable storage, Data Banks, Rainbow cards.
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18.  Rainbow cards can be used in mobile devices in place of DVDs
& VCDs.
 The rainbow cards can solve this problem. Un-authorized
copies of the films can be controlled to a certain limits using
these cards.
 Another theme put forward by rainbow technology is the Data
Banks. it is huge server with a high storage capacity.
 Larger amount of data can be had on lesser space.
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19. DISADVANTAGES
 The paper has the tendency to fade away hence the
data loss may occur.
 With the extremely low cost of using this technology we
can always afford to have multiple copies.
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20. CONCLUSION
 Once the Rainbow technology is in, soon we would be
watching full-length high-definition videos from a piece of
paper!
 With the popularity of the Rainbow Technology, computer or
fashion magazines in future need not carry CDs in a pack.
 It should cost a lot less to produce than the typical
polycarbonate DVDs, CDs and now Blu- rays. Huge data banks
can be constructed out of Rainbow-based storage medium.
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21. REFERENCES
"Data Can Now Be Stored on Paper" by M. A. Siraj, Arab
News
Paper storage man misunderstood — The Inquirer article.
"Store 256GB on an A4 sheet" by Chris Mellor, Techworld
IT Soup: Scam of Indian student developing technology to
store 450 GB of data on a sheet of paper By IT Soup.
"Can you get 256GB on an A4 sheet? No way!" By Chris
Mellor, Techworld. 21

22. THANK YOU
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