WHATSAPP CROSSED 70 MILLION USER IN INDIA

Mobile messenger service whatsApp crossed 70 million user's in India, and the company told these list which includes the people at least uses a whatsApp once a month.it's business head Arrora said today.

whatsapp only have 80 engineers .

India is the one of the biggest market for whatsApp , and also he told connecting millons of people in market like Brazil and India is the aim of the company.


Also the company conformed after WhatsApp takeover  by the Facebook, even after it will not merged to the Facebook,

He also added " The founders wanted to develop a cool product which will used by millions and didn't have business things like valuation. "

What is MongoDB?

mongodb is  a document oriented databases and which classified as Nosql database.
it's not same as the traditional database ,The format will like be in JSON file format,

main features:
1)document oriented
ad hoc queries
indexing
replication
load balancing
file storage
aggregation
server side javascript execution
capped collections