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- Floppy_disk_format abstract "Floppy disk format and density refer to the logical and physical layout of data stored on a floppy disk. Since their introduction, there have been many popular and rare floppy disk types, densities, and formats used in computing, leading to much confusion over their differences. In the early 2000s, most floppy disk types and formats became obsolete, leaving the 3 1⁄2-inch disk, using an IBM PC compatible format of 1440 KB, as the only remaining popular format.Different floppy disk types had different recording characteristics, with varying magnetic coercivity (measured in oersteds, or in modern SI units in amperes per meter), ferrite grain size, and tracks per inch (TPI). TPI was not a part of the physical manufacturing process; it was a certification of how closely tracks of data could be spaced on the medium safely.The term density has a double meaning for floppy disks. Originally, single density and double density indicated a difference in logical encoding on the same type of physical media -- FM for single, and MFM for double. Future use of the term \"density\" referred to physical characteristics of the media, with MFM assumed to be the logical format used. GCR was also used on some platforms, but typically in a \"double\" density form.8- and 5 1⁄4-inch floppy disks were available with both soft sectoring and hard sectoring. Because of the similarity in magnetic characteristics between some disk types, it was possible to use an incorrectly certified disk in a soft sectored drive. Quad density 5 1⁄4-inch disks were rare, so it was not uncommon to use higher quality double density disks, which were usually capable of sustaining the 96 TPI formatting of quad density, in drives such as the Commodore 8050.Disks were available in both single and double sided forms, with double sided formats providing twice the storage capacity. Like TPI, \"double sided\" was mostly a certification indicator, as the magnetic media was usually recordable on both sides. Many (but not all) certified \"double sided\" 8- and 5 1⁄4-inch floppies had an index hole on both sides of the disk sleeve to make them usable as flippy disks.A combination floppy disk and optical disc, known as a Floptical disk exists. The size of a 3 1⁄2-inch (90 mm) disk, they are capable of holding close to 20.8 MB, but need a special drive.".
- Floppy_disk_format wikiPageExternalLink books?id=44LkcQAACAAJ.
- Floppy_disk_format wikiPageID "2062508".
- Floppy_disk_format wikiPageLength "8408".
- Floppy_disk_format wikiPageOutDegree "25".
- Floppy_disk_format wikiPageRevisionID "624861866".
- Floppy_disk_format wikiPageWikiLink Amiga.
- Floppy_disk_format wikiPageWikiLink Ampere.
- Floppy_disk_format wikiPageWikiLink Byte.
- Floppy_disk_format wikiPageWikiLink Category:Floppy_disk_computer_storage.
- Floppy_disk_format wikiPageWikiLink Coercivity.
- Floppy_disk_format wikiPageWikiLink Commodore_8050.
- Floppy_disk_format wikiPageWikiLink Cylinder-head-sector.
- Floppy_disk_format wikiPageWikiLink Double-sided_disk.
- Floppy_disk_format wikiPageWikiLink File_Allocation_Table.
- Floppy_disk_format wikiPageWikiLink Floppy_disk.
- Floppy_disk_format wikiPageWikiLink Floppy_disk_variants.
- Floppy_disk_format wikiPageWikiLink Floptical.
- Floppy_disk_format wikiPageWikiLink Frequency_modulation.
- Floppy_disk_format wikiPageWikiLink Group_code_recording.
- Floppy_disk_format wikiPageWikiLink Hard_sectoring.
- Floppy_disk_format wikiPageWikiLink IBM.
- Floppy_disk_format wikiPageWikiLink IBM_Personal_Computer.
- Floppy_disk_format wikiPageWikiLink International_System_of_Units.
- Floppy_disk_format wikiPageWikiLink Modified_Frequency_Modulation.
- Floppy_disk_format wikiPageWikiLink Oersted.
- Floppy_disk_format wikiPageWikiLink Optical_disc.
- Floppy_disk_format wikiPageWikiLink Random-access_memory.
- Floppy_disk_format wikiPageWikiLink Soft_sectoring.
- Floppy_disk_format wikiPageWikiLinkText "FM".
- Floppy_disk_format wikiPageWikiLinkText "Floppy disk format".
- Floppy_disk_format wikiPageWikiLinkText "Floppy_disk_format#Single_Sided.2C_Double_Density".
- Floppy_disk_format wikiPageWikiLinkText "MFM".
- Floppy_disk_format wikiPageWikiLinkText "disk format".
- Floppy_disk_format wikiPageWikiLinkText "floppy disk format".
- Floppy_disk_format wikiPageWikiLinkText "high density floppy disks".
- Floppy_disk_format wikiPageUsesTemplate Template:Citation_needed.
- Floppy_disk_format wikiPageUsesTemplate Template:Cite_book.
- Floppy_disk_format wikiPageUsesTemplate Template:Frac.
- Floppy_disk_format wikiPageUsesTemplate Template:Main.
- Floppy_disk_format wikiPageUsesTemplate Template:Reflist.
- Floppy_disk_format subject Category:Floppy_disk_computer_storage.
- Floppy_disk_format type Redirect.
- Floppy_disk_format comment "Floppy disk format and density refer to the logical and physical layout of data stored on a floppy disk. Since their introduction, there have been many popular and rare floppy disk types, densities, and formats used in computing, leading to much confusion over their differences.".
- Floppy_disk_format label "Floppy disk format".
- Floppy_disk_format sameAs Q2289223.
- Floppy_disk_format sameAs double-sided.
- Floppy_disk_format sameAs m.06jgg9.
- Floppy_disk_format sameAs Q2289223.
- Floppy_disk_format wasDerivedFrom Floppy_disk_format?oldid=624861866.
- Floppy_disk_format isPrimaryTopicOf Floppy_disk_format.