Answer:
It is a new javaScript engine developed by Microsoft for its IE9 web browser.
A distinctive feature of the engine is that it include a new JavaScript compiler that compiles the scripts on a separate CPU core and convert into high-quality native machine code.
The engine is also able to access the computer's graphics processing unit (GPU), in particular for 3D graphics and video.
It also include a new interpreter for executing script on traditional web pages, and improvements to the JavaScript runtime and libraries.
Source: MSDN | |
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