Teradata systems were the first to store and analyze 1 terabyte of data in 1992. Hard disk drives were 2.5GB in 1991 so the definition of big data continuously evolves according to Kryder's Law. Teradata installed the first petabyte class RDBMS based system in 2007.
Yum Brands, Inc. (NYSE: YUM) is the largest quick-service restaurant company in the world, with over 41,000 restaurants across 125 countries. The company is most known for its franchise chains KFC, Pizza Hut and Taco Bell, and it owns a controlling interest in Chinaâs Little Sheep.
McDonald's. McDonald's Corporation (NYSE: MCD) is the world's largest chain of fast-food restaurants. This company began in 1940 with a restaurant opened by siblings Dick and Mac McDonald, but it was their introduction of the Speedee Service System in 1948 that established the principles of the fast-food restaurant.