In this handout photo provided by Perot Sytems, Michael Dell, left and Ross Perot Sr, chairman emeritus of Perot Systems, shake hands Monday, September 21, 2009, in Dallas. Dell announced the acquisition of Perot Systems for $3.9 Billion. AP Photo logo AP Photo 5 months ago

In this handout photo provided by Perot Sytems, Michael Dell, left and Ross Perot Sr, chairman emeritus of Perot Systems, shake hands Monday, September 21, 2009, in Dallas. Dell announced the acquisition of Perot Systems for $3.9 Billion.