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Fuvest 2020 · Primeira fase · Questão 29 · Objetiva
Inglês · Interpretação de texto
TEXTO PARA AS QUESTÕES 29 E 30
"Scientists have long touted DNA's potential as an ideal storage medium; it's dense, easy to replicate, and stable over millennia. But in order to replace existing silicon-chip or magnetic-tape storage technologies, DNA will have to get a lot cheaper to predictably read, write, and package.
That's where scientists like Hyunjun Park come in. He and the other cofounders of Catalog, an MIT DNA-storage spinoff emerging out of stealth on Tuesday, are building a machine that will write a terabyte of data a day, using 500 trillion molecules of DNA.
If successful, DNA storage could be the answer to a uniquely 21st-century problem: information overload. Five years ago humans had produced 4.4 zettabytes of data; that's set to explode to 160 zettabytes (each year!) by 2025. Current infrastructure can handle only a fraction of the coming data deluge, which is expected to consume all the world's microchip-grade silicon by 2040.
“Today's technology is already close to the physical limits of scaling,” says Victor Zhirnov, chief scientist of the Semiconductor Research Corporation. “DNA has an information-storage density several orders of magnitude higher than any other known storage technology.”
How dense exactly? Imagine formatting every movie ever made into DNA; it would be smaller than the size of a sugar cube. And it would last for 10,000 years."
Wired, June, 2018. Disponível em https://www.wired.com/. Adaptado.
Afirma-se no texto que, no futuro, a tecnologia de gravação em moléculas de DNA
- será utilizada para sequenciar trilhões de moléculas destinadas à pesquisa médica.
- deverá ter seu uso expandido no campo da genética e áreas afins.
- continuará sendo inviável comparada a tecnologias convencionais.
- terá de ser adaptada para o propósito de ler, codificar e guardar dados.
- poderá ser a solução para o problema de espaço de armazenamento de informação digital.
Rascunho