Is java powerfull enougth to build an Operative System.
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Posted By:   Anonymous
Posted On:   Thursday, June 14, 2001 10:08 PM

Is java powerfull enougth to buid a Operative System written 100% in java ?


How much java is independent of any OS or programming Language to build a JavaOS with own boot ?
I would like to know how powerfull is assembly API for java. thanks.

Re: Is java powerfull enougth to build an Operative System.

Posted By:   Finlay_McWalter  
Posted On:   Friday, June 15, 2001 04:37 PM

A 100% java-based OS is really only meaningful on a processor that can run Java bytecodes directly.


On those Java chips which are (or have been) available, the OS was written in a combination of Java (language) and java-bytecode. Indeed, as most (all?) of those chips only implement a subset of the bytecodes (and also omit large parts of the higher order functionality of the runtime) those implementations must implement a fair amount of the runtime (e.g. GC, primordial-classloader) in java bytecode.

Re: Is java powerfull enougth to build an Operative System.

Posted By:   Luigi_Viggiano  
Posted On:   Friday, June 15, 2001 03:37 AM

I think yes. As java is unable to communicate with hardware I think that a C/Assembly layer will always be necessary. This, can change when Java CPU will be aivable.
I'm not able give you a comprensive answer to your question but I just want to give you some links about this issue:



Sun and IBM was working on JavaOS but I don't know the "state of art".
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