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To: Mark Brophy who wrote (4441)	3/13/1999 2:45:00 PM
From: James Connolly	Read Replies (1) \| Respond to of 10309

Mark, Thanks for your input. The Playstation 2 uses a 128 bit CPU designed to run games which are specifically written for this new chip. Sony was then faced with a problem. All the old software written for the original Playstation was not backward compatible with this new 128 bit chip. They then decided to put a second CPU into the new Playstation model. The second CPU contains the same core as the original Playstation CPU and hence will run the older games. Now if you have two CPU's in a system why not add IOP functionality to the least complex of the two. When the older games are run the system runs on the old core and when the system runs the new games they run on the new 128 bit CPU and the second CPU becomes a IOP device. If Sony and LSI wanted to implement the same concept as I2O and both are members of the I2O SIG why would they waste time by writing new software ? Also I2O is not confined to just i960 and StrongARM chips, anyone can license it. I used the Intel royality rate just as an approximation for the calculations. I am not saying that the Playstation 2 definitely uses IxWorks. I am just trying to find out. I have not seen proof for or against so far. I do not think any WIND bulls out there should get too carried away with this as it may well not use IxWorks. Regards JC.