Editing Sony (section)

===Disk storage===
In 1983, Sony introduced 90&nbsp;mm micro diskettes, better known as {{convert|3.5|in|mm|adj=on}} [[floppy disk]]s, which it had developed at a time when there were 4" floppy disks, and many variations from different companies, to replace the then on-going 5.25" floppy disks. Sony had great success and the format became dominant. 3.5" floppy disks gradually became obsolete as they were replaced by current media formats. Sony held more than a 70 percent share of the market when it decided to pull the plug on the format in 2010.<ref>{{Cite book |last=Ma'arif |first=Nelly Nailatie |url=https://books.google.com/books?id=oc_0AkhysO0C&q=Sony+had+great+success+and+the+format+became+dominant.+3.5%22+floppy+disks+gradually+became+obsolete+as+they+were+replaced+by+current+media+formats&pg=PT194 |title=Power of Marketing |date=2008 |publisher=Penerbit Salemba |isbn=9789796914456 |language=en |access-date=2020-10-20  |archive-date=2023-12-30  |archive-url=https://web.archive.org/web/20231230025207/https://books.google.com/books?id=oc_0AkhysO0C&q=Sony+had+great+success+and+the+format+became+dominant.+3.5%22+floppy+disks+gradually+became+obsolete+as+they+were+replaced+by+current+media+formats&pg=PT194#v=snippet&q=Sony%20had%20great%20success%20and%20the%20format%20became%20dominant.%203.5%22%20floppy%20disks%20gradually%20became%20obsolete%20as%20they%20were%20replaced%20by%20current%20media%20formats&f=false |url-status=live }}</ref><ref>{{Cite web |title=Floppy disk history: The evolution of personal computing |url=https://www.hpe.com/us/en/insights/articles/floppy-disk-history-the-evolution-of-personal-computing-1804.html |access-date=2020-08-03  |archive-date=2021-02-06  |archive-url=https://web.archive.org/web/20210206204632/https://www.hpe.com/us/en/insights/articles/floppy-disk-history-the-evolution-of-personal-computing-1804.html |url-status=live }}</ref>

Sony still develops [[Magnetic-tape data storage|magnetic tape]] storage technologies along with [[IBM]],<ref>{{Cite web |last=Anthony |first=Sebastian |date=2017-08-02 |title=IBM and Sony cram up to 330 terabytes into tiny tape cartridge |url=https://arstechnica.com/information-technology/2017/08/ibm-and-sony-cram-up-to-330tb-into-tiny-tape-cartridge/ |access-date=2023-12-20 |website=Ars Technica |language=en-us |archive-date=2023-05-27  |archive-url=https://web.archive.org/web/20230527023718/https://arstechnica.com/information-technology/2017/08/ibm-and-sony-cram-up-to-330tb-into-tiny-tape-cartridge/ |url-status=live }}</ref> and are one of only two manufacturers of [[Linear Tape-Open]] (LTO) cartridges.