22 days later
this was my senior project at university back in 2013-2014.
it was theoretical of course since it was expensive.
we wrote 46 letters on DNA we had to split them into 3 parts since the existing machines cannot write a big amount of "ACTG" on the same DNA.
it was costly. we paid 80$ for it. and we had to send it to Sweden since it is one among few countries who possess the machine that create or write on DNA.

the results of our research on this topic where shocking, based on the research 1g of DNA can store up to 53 EXABYTE of data, 53,000,000 TERABYTE. and one gram of DNA can fit in a small tube...

it was a very interesting topic that me and my team really enjoyed.

and we knew that this thing will be the future of storage.
But what about reliability of data storage? Technically DVD, even it is considered pretty stable and easy to read structure, has significant ECC overhead.
1g of dna is a very huge amount...VERY! i’m a biochemist and biologist...and with around 10mg of DNA you can write a whole thesis! this is not shocking if you know how complex is your body...hince you use a very small amout of data stocked in your DNA! praise the lord! : )
what use is storage that is not permanent? how can that translate to IO?
basically if you wanna store data in dna
it will be for archiving
so you store the data that you wont be using frequently in the DNA to save space...
writing and reading from dna is costly and should be done when extremely needed.
thats the concept we where following.
i have no idea if new machines are created that can do the job with low cost...