boot sector

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English[edit]

Etymology[edit]

boot +‎ sector

Noun[edit]

boot sector (plural boot sectors)

  1. (computing) A dedicated sector, usually at the beginning (first sector on first track) of a storage medium, that holds special data used to start a system.
    Some systems use a boot block of several physical sectors, while some use only one boot sector. Other manufacturers use the terms "boot block" and "boot sector" interchangeably.

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