Every noticeable event, transaction, interaction, request and reply, and so on are being expectantly captured and saved in storage appliances and arrays for real-time as well as posterior investigations create something we call it .

Every noticeable event, transaction, interaction, request and reply, and so on are being expectantly captured and saved in storage appliances and arrays for real-time as well as posterior investigations create something we call it Big Data.

Another way to look at is that it comprises massive amounts of data that keeps on growing exponentially over time so much so that it cannot be processed or analyzed using usual data processing techniques.

Cheers!