What is the term used to describe data sets are so large and complex that they become difficult to process using traditional data processing applications?

Big Data

Explanation:

Big Data refers to data sets that are large, comprising of different varieties (structured and unstructured data types) and which cannot be processed by the day to day database management systems and computer software otherwise referred to as traditional software and techniques.

The term Big does not necessarily refer to a particular size that a dataset must attain but describes the nature of the dataset and the fact that traditional database management systems cannot be used to process them take for example

The datasets of the entire product list from amazon