Rainbow technology offers a novel method for data storage by encoding and printing data on paper using colored geometric shapes, allowing for up to 2.7GB per square inch. Data is read through specialized scanners that decode the printed colors back into digital format, with potential applications including 'rainbow cards' which can hold 5GB of data. While the technology presents advantages in cost and environmental friendliness, it also faces challenges such as data degradation over time and susceptibility to tampering.

1. RAINBOW
TECHNOLOGY
Anandhu nadesh
Reg No:-95514241
S5 MCA-B
KVM C E & IT

2. ABSTRACT
Rainbow technology is a way of storing
large amount of data into a paper by
encrypting the data in different depths
and printing it to the paper.
The encoded data is then scanned and
perform some decryption techniques
on it to retrieve the original data.
It is a system which is still evolving, and
can be described only theoretically

3. INTRODUCTION
• 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.
• Colour is also used in Rainbow storage for
representing other data elements like picture,
audio, video etc. They are represented using
coloured geometric shapes.

5. • Data can be printed as dense graphics on
paper at a density of 2.7GB per square inch.
• The printed data can then be read through a
specially developed scanner and the contents
can be decoded into their original digital
format and viewed or played using specially
developed software
• Each colour dot in the print can represent
minimum 8 bits (1 byte).

6. • In order to read the Rainbow prints, all
that is required is a scanner and
specialized software.
• Smaller scanners could fit inside laptop
computers or mobile phones, and read
SIM card-sized RVD's containing 5GB of
data.
• A scanning drive based on the rainbow
software has simultaneously been
developed which will come in smaller
sizes

7. • The developer is simultaneously
moulding the technology into
'Rainbow Cards' which will be of SIM
card size and store 5 GB of data
• Large scale manufacture of the
Rainbow card will bring down the
cost of storing 5 GB of data to just 50
paise

8. This technology is based on two principles
• Principle I :- Every color or color
combination can be converted in to
some values and from the values the
colors or color combinations can be
regenerated
• Principle II :- Every different colour or
colour combinations will produce
different values

9. Process of storing data
• Printing at 1,200 dots per inch (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 megabytes for a
sheet of A4 paper

10. • If the scanner were able to accurately
distinguish between 16,777,216 colors (24
bits, or 3 bytes per dot), the capacity would
triple

11. HIDING DATA

12. Zoomed view of the above figure

14. CONVERSION PROCEDURE
1. Data to Data Picture
• A chunk of data bits are taken from data
source, which is known as a word
• Then the word is converted into a value that
will be unique for each different combination
of bits
• The value then passes through some error
checking mechanisms

15. • Represent these values as color dots so that a
picture is formed
• Picture Boundary Mapper (PBM) (for keeping
track of the boundary of data picture),
universal Picture Dot(UPD) (a static value that
is used for mapping errors that occurred due
to colour fading), etc will be attached to the
picture.
• Now the original data is encoded into Data
Picture and it can be now printed in any
printable media.

16. 2. Data Picture to Data
• Data Picture to data conversion uses just the
reverse process
• Data Picture is taken as an input and the
parameters like UPD, PBM, etc are read from
the header. The actual data is generated by
picture to value conversion

18. COMPONENTS
1.RVD

19. 2.Rainbow cards

20. • Files in any format like movie files, songs,
images, text can be stored using this
technology.
• Biodegradable nature of the storage devices
would do away with the e-waste pollution.
• The main storage devices made using this
technology are RVD, Disposable storage,
Rainbow cards, are answer to the storage
problems faced by the computer world.
ADVANTAGES

21. • With the help of disposable storage, any type
of computer files can be stored and
distributed this way at a very low cost.
• Rainbow cards can be used in mobile devices
in place of DVDs &VCDs.
• In a square inch sized rainbow cards,
(equivalent to the size of sim card) more than
5GB data can be stored.

22. DISADVANTAGES
• The paper has the tendency to fade away
hence the data loss may occur.
• We cannot store data on papers for a long
time
• Risk of accidentally tampering the print

23. CONCLUSION
• Once the Rainbow technology is in, soon we
would be watching full-length high definition
videos from a piece of paper! One of the
major advantages of the Rainbow system is
the fact that it should cost a lot less to
produce than the typical polycarbonate DVDs,
CDs and now Blu-rays.

24. THANK YOU