4. Let’s Recap…
Deoxyribonucleic acid (DNA) is a
molecule that carries the genetic
(hereditary) instructions used in the growth,
development all living organism.
It consist of two biopolymer strands coiled
around each other to form a double helix.
Made up of four nitrogen bases: adenine (A),
guanine (G), cytosine (C), and thymine (T).
Nucleotide = Nitrogen base + Sugar +
Phosphate.
5. Earlier devices
In mid-1700 – Punch card
It was used for input both of programs and data.
Used as early as 1725 in the textile industry (for controlling
mechanized textile looms).
In 1946 – Selectron tube
Capacity - 32 to 512 bytes.
4096-bit Selectron was 10 inches long and 3 inches wide.
Con’s - expensive and production problems.
7. Earlier devices …
In 1932 – Magnetic drum memory
Memory capacity - 10 kB.
In 1951 – Magnetic tape
In 1956 – Hard disk drive
IBM Model 350 - It had 50 24-inch discs with a total storage
capacity of 5 million characters (just under 5 MB).
In 1971 – First Floppy drive (Diskette).
In 1978 – Compact disc
In 1980 – Hard disk drive (First 1 GB drive)
11. History
The idea about the possibility of recording,
storage and retrieval of information on DNA
molecules were originally made by Mikhail
Neiman
He published his idea in 1964–65 in the
Radiotekhnika journal, USSR(now Russia),
and the technology during that time was
referred to as MNeimONics(Mikhail Neiman
OligoNucleotides).
12. History …
In 2007 a device was created at the University of Arizona, but during
that time DNA synthesis was expensive as well as laborious process.
On August 16, 2012, the journal Science published research by George
Church and his colleagues at Harvard University, in which DNA was
encoded with digital information that included an HTML pages of a
53,400 words, 11 JPG images and 1 JavaScript program.
Many other projects were taken in
January 2013 - European Bioinformatics Institute
April 2016 - University of Washington
March 2017 - Columbia University and New York Genome Center
14. References ...
Official website : University of Washington
Official website : Microsoft Inc.
https://en.wikipedia.org/wiki/DNA
https://en.wikipedia.org/wiki/DNA_digital_data_storage
http://www.zetta.net/about/blog/history-data-storage-technology
For images : Wikipedia and Zetta Labs images.
