Question:Using their annual reports and/or 10k filings (www.annualrepo

Question:Using their annual reports and/or 10k filings (www.annualreports.com, EDGAR at http://www.sec.gov/edgar.shtml), the technology press, the business press (mostly archives of the WSJ, Business Week, Fortune, Forbes, etc.), company web sites, and whatever else you find useful report on the following.Question 1. Very briefly describe the business model of Caterpillar (mainly revenue stream and cost structure).