在计算机磁盘存储器，一个扇区（英文：sector）是磁盘或光盘上一个磁道的分区。每个扇区存储固定数量用户可访问的数据，对于硬盘驱动器（HDD）和2048字节对于CD-ROM和DVD-ROM，传统上是512字节。较新的硬盘驱动器使用4096字节（4 KiB）扇区，这被称为先进格式化（Advanced Format）（AF）。
 |
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
