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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