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What about Java Physical Machine?

Asked 2010-10-24T08:46:07.797
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Java is most important language for mobile devices as it allows the same binary/byte code to be executed on every machine by inserting virtual layer of JVM between byte code and machine.

Can we build Java Physical Machine which will take byte code instead of traditional opcode and operand for X86/arm ? so the Actual Operating System Can be built using Java and it will be efficient/fast than installing JVM over our current operating system

My guess is it will restrict installing new version of JVM but many mobile devices do support limited version of JVM so that may not be the issue ?

Why anybody has not tried to implement same concepts to hardware ?

java jvm
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The problem with this is that you don't have the economies of scale.

The Intel/AMD processors are much cheaper and faster than what you can get with these until they go in every cpu everywhere. The current softwarebased JVMs are simply much faster than what could be gotten in hardware, and as the CPU's kept getting faster there was no incentive to move.

Times have changed. CPU's don't get any faster with the current architecture, so perhaps this makes more sense now, as Java is well suited for multi-core applications.

answered 2010-10-24T09:25:40.557

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