V2EX nvram

Nvram

定义 Definition

NVRAM(Non-Volatile Random-Access Memory,非易失性随机存取存储器):一种断电后仍能保存数据的内存/存储,用于保存配置参数、日志或关键状态信息(如 BIOS/UEFI 设置、设备固件配置等)。在不同语境下也可能泛指多种非易失存储技术(如 EEPROM、闪存、NVDIMM 等)。

发音 Pronunciation (IPA)

/nvirm/

例句 Examples

NVRAM stores the router’s settings even when the power is off.
即使断电,NVRAM 也会保存路由器的设置。

After the update, the system writes boot variables to NVRAM so the firmware can locate the correct startup entry.
更新后,系统会把启动变量写入 NVRAM,以便固件能找到正确的启动项。

词源 Etymology

NVRAM 是缩写,来自 Non-Volatile Random-Access Memory

  • non-volatile 表示“非易失的”(断电不丢数据)
  • RAM 表示“随机存取存储器”
    合在一起强调“像内存一样可随机访问,但数据不因断电而消失”。

相关词 Related Words

文学与著名作品 Literary Works

  • Computer Architecture: A Quantitative Approach(Hennessy & Patterson)在计算机体系结构与存储层次相关章节中常讨论非易失存储(含 NVRAM 语境)。
  • Operating Systems: Three Easy Pieces(Remzi & Andrea Arpaci-Dusseau)在持久化、崩溃一致性与存储相关内容中可能提及 NVRAM/持久内存概念。
  • Linux Device Drivers(Corbet, Rubini, Kroah-Hartman)涉及驱动与硬件交互时,常出现 NVRAM 作为设备配置/状态存放介质的讨论语境。
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