V2EX virtual machine

Virtual Machine

Definition / 定义

virtual machine(虚拟机):一种用软件模拟出来的“计算机”,在一台物理主机上提供独立的运行环境,可安装和运行操作系统与应用程序,像一台真实电脑一样工作。(该词也可指某些语言的运行时环境,如 Java Virtual Machine。)

Pronunciation / 发音

/vtul min/

Examples / 例句

I tested the program in a virtual machine.
我在虚拟机里测试了这个程序。

To improve security, the company runs untrusted code inside a virtual machine that is isolated from the host system.
为了提高安全性,公司把不受信任的代码放在与宿主系统隔离的虚拟机中运行。

Etymology / 词源

virtual 源自拉丁语 virtualis(“具有某种效力的、事实上的”),在计算机语境中引申为“通过软件实现、看起来像真实存在”。machine 来自拉丁语 machina(“装置、机器”)。合在一起,virtual machine 字面意思就是“通过软件实现的机器/计算机”,对应中文“虚拟机”。

Related Words / 相关词

Literary Works / 文学作品

  • Modern Operating Systems(Andrew S. Tanenbaum & Herbert Bos)
  • Operating System Concepts(Abraham Silberschatz, Peter B. Galvin, Greg Gagne)
  • Computer Architecture: A Quantitative Approach(John L. Hennessy & David A. Patterson)
  • The Java Virtual Machine Specification(Tim Lindholm 等)
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