Editing Disk density (section)

== References ==
{{reflist|refs=
<ref name="Scott_1990_UM">{{cite journal |title=More on Floppies |author-first=Greg |author-last=Scott |journal=U-M Computing News |publisher=[[University of Michigan]], Information Technology Division |date=1990-07-16 |volume=5 |number=12 |pages=10–11 |url=https://books.google.com/books?id=opXvAAAAMAAJ&pg=RA2-PA10 |access-date=2017-06-19 }}</ref>
<ref name="Epson_1984_PF-10">{{cite book |title=Epson PF-10 Operating Manual |publisher=[[Epson Corporation]] |location=Nagano, Japan |date=1984 |url=http://electrickery.xs4all.nl/comp/px8/doc/PF-10Manual.pdf |access-date=2017-06-19 |url-status=live |archive-url=https://web.archive.org/web/20170619024329/http://electrickery.xs4all.nl/comp/px8/doc/PF-10Manual.pdf |archive-date=2017-06-19}} (NB. The [[Epson PF-10]] is an external diskette drive for the [[Epson PX-8]] (Geneva) CP/M laptop.)</ref>
<ref name="NEC_1991_uPD72070">{{cite book |title=NEC μPD72070 - Floppy Disk Controller Specification Version 2.0 |version=2.0 preliminary |publisher=[[NEC Corporation]] |date=October 1991 |url=http://dec8.info/Apple/uPD72070.pdf |access-date=2017-03-20 |url-status=live |archive-url=https://web.archive.org/web/20170320235834/http://dec8.info/Apple/uPD72070.pdf |archive-date=2017-03-20}}</ref>
<ref name="CW_1988_NEC">{{cite journal |title=Hitachi-Maxell bietet NEC neue 12,5-MB-Floppy an |date=1988-07-29 |location=Tokio, Japan |author=IDG |author-link=IDG |journal=[[Computerwoche]] |language=German |url=https://www.computerwoche.de/a/hitachi-maxell-bietet-nec-neue-12-5-mb-floppy-an,1155888 |access-date=2017-06-19 |url-status=live |archive-url=https://web.archive.org/web/20170619203621/https://www.computerwoche.de/a/hitachi-maxell-bietet-nec-neue-12-5-mb-floppy-an,1155888 |archive-date=2017-06-19 |quote=[…] [[Hitachi-Maxell]] hat ein 3½-Zoll-Diskettenlaufwerk mit einer Speicherkapazität von 12.5&nbsp;MB entwickelt. Nach eigenen Angaben will das Unternehmen auf [[OEM]]-Basis den Hersteller [[NEC]] mit den Geräten versorgen. Dort sollen sie als externer Speicher für die neue PC-Serie [[PC88VA3]] eingesetzt werden. Die Laufwerke mit der Bezeichnung PC&nbsp;FD810.1 sind voraussichtlich ab dem vierten Quartal dieses Jahres lieferbar. Bis Ende 1989 will NEC die ersten {{val|150000}} Geräte verkauft haben. […]}}</ref>
<ref name="NEC_PC88VA3">{{cite web |title=PC-88VA <ハードウエア> |language=Japanese |date=1995-06-24 |url=http://www.pc88.gr.jp/va/va-hard.html |access-date=2017-06-18 |url-status=live |archive-url=https://web.archive.org/web/20170618120229/http://www.pc88.gr.jp/va/va-hard.html |archive-date=2017-06-18}}</ref>
<ref name="Intel_1992_82077SL">{{cite book |title=Intel 82077SL for Super-Dense Floppies |author-first=Katen A. |author-last=Shah |publisher=[[Intel Corporation]], IMD Marketing |orig-year=September 1992, April 1992 |edition=2 |date=1996 |id=AP-358, 292093-002 |type=Application Note |url=http://www.pix.net/languard/pdfs/29209302.pdf |access-date=2017-06-19 |url-status=live |archive-url=https://web.archive.org/web/20170619210818/http://www.pix.net/languard/pdfs/29209302.pdf |archive-date=2017-06-19}}</ref>
<ref name="Johnson_2011_HDDD">{{cite web |date=2011-08-12 |orig-year=July 2009 |title=Use of HD and DD drives, diskettes |editor-first=Herbert R.<!-- Herb --> |editor-last=Johnson |author-first=Charles P.<!-- Chuck --> |author-last=Guzis |url=http://www.retrotechnology.com/herbs_stuff/guzis.html |access-date=2017-06-19 |url-status=live |archive-url=https://web.archive.org/web/20170619213807/http://www.retrotechnology.com/herbs_stuff/guzis.html |archive-date=2017-06-19}} (NB. Based on specifications by the National Media Laboratory, associated with [[3M]]/[[Imation]].)</ref>
<ref name="Mueller_1994_HW">{{cite book |title=Hardware-Praxis - PCs warten reparieren, aufrüsten und konfigurieren |author-first=Scott |author-last=Mueller |date=1994 |isbn=3-89319-705-2 |edition=3rd |publisher=[[Addison-Wesley Publishing Company]] |language=German}}</ref>
<ref name="Yaskawa_1988_MR">{{cite book |title=Magnetic Recording |chapter=3. Data Storage on Flexible Disks |author-last1=Yaskawa |author-first1=Seiichi |author-last2=Heath |author-first2=John |editor-last1=Mee |editor-first1=C. Denis |editor-last2=Daniel |editor-first2=Eric D. |publisher=[[McGraw-Hill Book Company]] |date=1988 |volume=II: Computer Data Storage |edition=1st |isbn=0-07-041272-3 |pages=130–169}}</ref>
<ref name="Williams_DSM">{{cite book |title=Disk Service Manual III - Unleash the Power of Your System! |chapter=FM vs. MFM encoding |author-first=John J. |author-last=Williams |publisher=Consumertronics Co. |edition=III |location=Alamogordo, New Mexico, USA |url=http://oldcomputers.dyndns.org/public/pub/manuals/disk_service_manual_iii.pdf |access-date=2021-11-02 }}</ref>
}}