翻訳と辞書
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・ Single coil guitar pickup
・ Single Collection (Hitomi Yaida album)
・ Single Collection (Jun Shibata album)
・ Single Collection/Yaiko's Selection
・ Single combat
・ Single Compilation Unit
・ Single Connector Attachment
・ Single context recording
・ Single Convention on Narcotic Drugs
・ Single crossing condition
・ Single crystal
・ Single customer view
・ Single Cuts
・ Single cycle processor
・ Single Dad in Love
Single density
・ Single deposit
・ Single desk
・ Single displacement reaction
・ Single document interface
・ Single Dog
・ Single domain
・ Single domain (magnetic)
・ Single Euro Payments Area
・ Single European Act
・ Single European Sky
・ Single European Sky ATM Research
・ Single event upset
・ Single Farm Payment
・ Single Father


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Single density : ウィキペディア英語版
Single density

Single density, often shortened SD, is a capacity designation on magnetic storage, usually floppy disks. It describes the use of an encoding (or modulation) of information using Frequency modulation, also known as biphase mark code.
Early floppy disk drives used this method, but they are now obsolete. It was quickly replaced by double density floppy drives using modified frequency modulation (MFM) or group code recording (GCR).
==See also==

* Floppy disk format


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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