“Based on early research involving the storage of movies and documents in DNA, Microsoft is developing an apparatus that uses biology to replace tape drives, researchers at the company say. Computer architects at Microsoft Research say the company has formalized a goal of having an operational storage system based on DNA working inside a data center toward the end of this decade. The aim is a “proto-commercial system in three years storing some amount of data on DNA in one of our data centers, for at least a boutique application,” says Doug Carmean, a partner architect at Microsoft Research. He describes the eventual device as the size of a large, 1970s-era Xerox copier. Internally, Microsoft harbors the even more ambitious goal of replacing tape drives, a common format used for archiving information. “We hope to get it branded as ‘Your Storage with DNA,’” says Carmean. The plans signal how seriously some tech companies are taking the seemingly strange idea of saving videos, photos, or valuable documents in the same molecule our genes are made of. The reason, says Victor Zhirnov, chief scientist of the Semiconductor Research Corporation, is that efforts to shrink computer memory are hitting physical limits, but DNA can store data at incredible densities.”