comes from a variety of sources, such as people, pictures, text, sensors, and web sites

different types of data

data coming in quickly

large amount of data

designed to keep the data closer to the source for pre-processing

a collection of data centers or groups of connected servers

open-source software created to distribute and process big datasets in smaller quantities

large volume of data broken into smaller pieces and stored on different servers

data created by applications that use "fixed" format input such as spreadsheets or medical forms

a type of plaintext file that use commas to separate columns in a table of data

data generated in a "freeform" style such as audio, video, web pages, and tweets

the process of turning raw data into meaningful information by discovering patterns and relationships in large data sets

the process of inspecting, cleaning, transforming, and modeling data to uncover useful information