Overheard: Word of the Day

Sep 27 2013   5:07PM GMT

Word of the Day: hardware emulation

Margaret Rouse Margaret Rouse Profile: Margaret Rouse

Word of the Day

Today’s WhatIs.com Word of the Day is hardware emulation, the use of one hardware device to mimic the function of another hardware device. An administrator must use hardware emulation if he needs to run an unsupported operating system (OS) within a virtual machine (VM). In such a scenario, the virtual machine does not have direct access to server hardware. Instead, an emulation layer directs traffic between physical and virtual hardware. Continued…

Related terms:

emulator
ROM emulation
in-circuit emulator
terminal emulation

Overheard

“One of the big problems with installing an operating system (OS) onto a virtual machine (VM) is that the OS thinks it is installed on physical hardware.” — Brien Posey

Quiz Yourself

If a software program is compiled to run with a particular processor and its set of instructions, the result can be referred to as ______ code.
a. native
b. object
Answer

Related Reading

Using hardware emulation tools to run embedded OSes
Learn how hardware emulation tools can help you test OSes that run on unusual processors in this tip about running an embedded OS.
Deploying multiple servers in Xen: Partition, emulate, virtualize
Kernel emulation allows a guest OS to negotiate software applications’ requests for underlying hardware.
Five ways to improve virtual machine performance
Now that server virtualization has matured, it is possible to create high-performance virtual machines without hardware emulation.

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