1, big data. IT industry terminology, refers to the collection of data that can not be captured, managed and processed within a certain timeframe with conventional software tools, is a massive, high growth rate and diverse information assets that require new processing models to have stronger decision-making, insight discovery and process optimization capabilities. 2, window. The original meaning is window, the new meaning is a rectangular area on the screen of the computer human interface. There is also a new meaning is "to meet certain conditions of the time", such as "rocket launch window", "oil price window". 3, desktop. The original meaning is the table used to put things on the plane. The new meaning is to enter the computer's Windows operating system platform, the background displayed on the monitor.