Friday, August 17, 2012

DNA storage - Harvard learning from our Creator!

Harvard cracks DNA storage, crams 700 terabytes of data into a single gram

A bioengineer and geneticist at Harvard’s Wyss Institute have successfully stored 5.5 petabits of data — around 700 terabytes — in a single gram of DNA, smashing the previous DNA data density record by a thousand times.

The work, carried out by George Church and Sri Kosuri, basically treats DNA as just another digital storage device. Instead of binary data being encoded as magnetic regions on a hard drive platter, strands of DNA that store 96 bits are synthesized, with each of the bases (TGAC) representing a binary value (T and G = 1, A and C = 0).

To read the data stored in DNA, you simply sequence it — just as if you were sequencing the human genome — and convert each of the TGAC bases back into binary. To aid with sequencing, each strand of DNA has a 19-bit address block at the start (the red bits in the image below) — so a whole vat of DNA can be sequenced out of order, and then sorted into usable data using the addresses.
Read the entire article by Sebastian Anthony from Extreme Tech website

The DNA storage system described in the quoted article can put in one gram the amount of binary data that would weight 151 kilograms in standard hard disks!

This is a classic case of us humans learning from God's wisdom and applying His genious into our own devices and procedures. Note, however, that George Church and Sri Kosuri simplify the DNA system by reducing the extremely complicated TGAC coding to simple Boolean by TG=1 and AC=0.

One day we probably know how to handle mathematically and physically full four digit coding and come closer to the model set by God of Israel who designed DNA.

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