Many people think of big data as lots of data that is collected by large companies to spy on people. They think of it as this new technology that is slowly revolutionising the way we do business. Big data is not as simple as numbers that businesses are collecting. Big Data for Dummies states, "Big data is not a single technology but a combination of new and old technologies that help companies gain actionable insights. Therefore, big data is the capability to manage a huge volume of disparate data at the right speed, and within the right time frame to allow real-time analysis and reaction."