In CES 2010 , Steve Ballmer chief executive officer of Microsoft Corporation unveiled the new slate PC from HP.This slate PC  is become the reason of the partnership between Microsoft and HP.Slate PC is the foundation of the relationship between Microsoft and HP.In the following video Steve Ballmer, chief executive officer of Microsoft Corporation, discusses the following :

How the extended partnership with HP is the industry’s most comprehensive technology stack integration to date — from infrastructure to application — with an investment of $250 million over the next three years.

Following is the video in which Steve Ballmer discusses the facts :