Which database does Facebook & Google use ?

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Facebook has moved to a NoSQL database named HBase. Google uses their own system called BigTable. What is NoSQL ? NoSQL is a term used to designate databases which differ from classic relational databases. NoSQL database management systems are useful when working with a huge quantity of data when the data's nature does not require a relational model. The data can be structured, but NoSQL is used when what really matters is the ability to store and retrieve great quantities of data, not the relationships between the elements.
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Increase Your Browsing Speed

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Increase Your Browsing Speed By Hacking Your ISP DataCard
OpenDNS speeds up your Internet connection.
It allows you to connect on any device, anywhere, anytime.
How to use OpenDNS ?
Open your Network Connection/­Router settings
Check box “Use DNS”
Update the default DNS to point:
208.67.222.222 and 208.67.220.220.
Apply and Save settings.
Access Internet.

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