Big Data : A big world

Big data is too often regarded as a raw force of nature that simply must be harnessed.
-Rebecca Lemov

Technology is ruling over the world. The segment of industry which keeps discovering and advancing the traditional ways of technology is holding superior
power on this globe.
Example: Facebook, Google etc.
With the evolution of Internet the globe became small as we learnt sharing
data across long distances.

What is data?

Basically Data consists of distinct information arranged in a specific manner. Today in this era of social networking we are generating a lots of data in the form of texts, images, videos etc.40 exabytes of Data is generated by a single cell phone within a month. Now think how much data is being generated by billions of users around
the globe.

What is Bigdata?

Massive amount of data that cannot be stored, processed and analyzed using the traditional ways is known as Big Data. Storing such a huge amount of data is a big challenge. It can be done by using different frameworks as Hadoop, Cassandra and Spark

Characteristic of Big Data :

Volume
Velocity
Variety
Veracity
Value

Volume : Volume refers to the amount of the data to be stored. For example
Google handles 10-15 exabytes of data.

Velocity : Velocity refers to the speed at which the big data is being generated.
For example :There are more than 3.5 billion searches per day on Google.

Variety : Variety refers to the type of data.
Structured data
Semi - Structured data
Unstructured data

Structured data : The data which is organized defining the length and format of data.

Semi-structured data : This is a semi- organized data. It doesn’t confirm the formal structure of data.

Unstructured data : This is unorganized data. For example text, pictures etc.

Veracity : Uncertainty in data is known as Veracity.

Value: Value refers to our ability to turn our data into value.

In 2012, Wal-Mart was generating 2.5 petabytes of data relating to more than 1 million customer transactions every hour. The same year, Facebook reported that it was processing 2.5 billion pieces of content (links, comments), 2.7 billion likes, and 300 million photo uploads per day. Meanwhile, opportunities for granular data-gathering keep evolving. This February, Facebook rolled out a diversified array of six emoji-like buttons to add range and affective specificity to the responsive clicks possible on the site.
I would like to conclude now
hoping it's gonna be help you.