V2EX em64t

EM64T

Definition / 定义

EM64T 是英特尔(Intel)曾使用的一个技术名称,指“扩展内存 64 位技术”(Extended Memory 64 Technology):在传统 x86(32 位)架构基础上扩展到 64 位的指令集与寻址能力,使处理器可运行 64 位操作系统与应用、支持更大的内存地址空间。该名称后来多被 Intel 64 所取代。(在不同语境下也可能泛指英特尔的 x86-64 兼容实现。)

Pronunciation / 发音

/iem skstifr ti/

Examples / 例句

My old desktop CPU supports EM64T.
我的旧台式机 CPU 支持 EM64T。

Systems that list EM64T capability can typically run 64-bit operating systems, though driver and firmware compatibility may still matter.
标注具备 EM64T 能力的系统通常可以运行 64 位操作系统,但驱动与固件兼容性仍可能影响实际效果。

Etymology / 词源

EM64T 是英特尔的市场/技术命名:EM 可理解为 “Extended Memory(扩展内存)”,64 指 64 位能力,T 为 Technology(技术)。它用于描述英特尔对业界常称 x86-64/AMD64 的 64 位扩展的实现;随后英特尔逐步改用更统一的名称 Intel 64

Related Words / 相关词

Literary Works / 文学与著作

  • Intel 64 and IA-32 Architectures Software Developer’s Manual(英特尔官方架构手册,涉及 Intel 64/相关扩展与兼容术语)
  • Windows Internals(讨论 32/64 位 Windows、处理器架构与兼容性时常涉及类似术语)
  • Computer Architecture: A Quantitative Approach(涉及指令集与 64 位扩展的背景知识,常与 x86-64 相关语境并用)
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