Hard sectoring

Hard sectoring in a magnetic or optical data storage device is a form of sectoring which uses a physical mark or hole in the recording medium to reference sector locations.

These rectangles constitute the hard (factory originated) sectoring of a DVD-RAM disc

In older 8- and 5​1⁄4-inch floppy disks, hard sectoring was implemented by punching sector holes in the disk to mark the start of each sector. These were equally spaced holes, at a common radius. This was in addition to the index hole, situated between two sector holes, to mark the start of the entire track of sectors. When the index or sector hole was recognized by an optical sensor, a sector signal was generated. Timing electronics or software would use the faster timing of the index hole between sector holes, to generate an index signal. Data read and write is faster in this technique than soft sectoring as no operations are to be performed regarding the starting and ending points of tracks.

Storage formats using hard sectoring
This list is incomplete; you can help by expanding it.
  • 32 sector 8-inch floppy disks
  • 10 sector and 16 sector 5​1⁄4-inch floppy disks
  • Numerous magneto-optical formats
  • DVD-RAM
gollark: > I'm a dedicated member of the esolangs esocommunity - even if I only made three esolangs and they are mostly joke languages and not very good, I am pretty actively on the discord and contribute* to conversations. I would NOT do the problematic stuff you do such as randomly removing roles people liked, randomly muting and/or kicking people, generally punishing people excessively for small things, insulting people (e.g. telling them to kill themselves) for having different food preferences, breaking bots for ages, or deleting 2000 messages [DATA EXPUNGED], a mere orthographic projection of your badness.> Also, I want the nice staff color and want Nobody/Palaiologos (how do you SPELL THAT) to stop doxxing people. Additionally, I have many innovations I'd like to bring to the server, such as a dodecahedron emoji, and can help develop some of them because I am somewhat okay at bot development, if not graphic design.
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References
  •  This article incorporates public domain material from the General Services Administration document: "Federal Standard 1037C".
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