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Technology Stocks : Intel Corporation (INTC)
INTC 40.56+10.3%12:59 PM EST

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To: The Duke of URL© who wrote (173621)3/18/2003 1:57:17 PM
From: Saturn V   of 186894
 
Ref < "ATI Signs Pentium M Bus License Agreement with Intel"....... Why would ati need a license? Is this Intel's attempt to revive the Micro Channel? >

Upto the Pentium 1 vintage, anyone could build a chipset for 386,486 and Pentium 1 bus. [ I am refering to the "Motherboard Bus", which links the processor to the chipsets, and not the PCI or ISA bus which defines the backplane expansion bus for add in cards. ] Starting with Pentium 2, Intel has used a proprietary patented "Motherboard Bus" which has to be licensed by a chipset manufacturer. The Pentium 4 again required a fresh new license. Via and Intel have had significant litigation on the licencing terms of the bus.

I believe that the ultimate objective of licensing the bus was not to put obstacles for the makers of the chipsets( who are providing Intel a service), but to exclude AMD from ever thinking of coming up with processors compatible with the Intel bus, and thus cheaply using the bus infrastructure nurtured by Intel. Intel and AMD signed an official agreement which precludes AMD from using the Post Pentium 1 bus structure, but licensing of the bus ensures that AMD cannot challenge the agreement.
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