Digital Equipment Corporation achieved sales of over $14 billion, reached the Fortune 50, and was second only to IBM as a computer manufacturer. Though responsible for the invention of speech recognition, the minicomputer, and local area networking, DEC ultimately failed as a business and was sold to Compaq Corporation in 1998. This fascinating modern Greek tragedy by Ed Schein, a high-level consultant to DEC for 40 years, shows how DEC"s unique corporate culture contributed both to its early successes and later to an organizational rigidity that caused its ultimate downfall.