noun
virtual device
Computing term for a software-emulated hardware component, such as a virtual disk or network adapter.
仮想装置を使うと、物理的なハードウェアを追加せずに機能を拡張できる。
Using virtual devices, you can extend functionality without adding physical hardware.
仮想マシン (virtual machine) is a complete emulated computer system, while 仮想装置 refers to an individual emulated hardware component within or outside a VM.
Compound of 仮想 (virtual) and 装置 (device, equipment). A straightforward modern technical term.