Which database does Facebook & Google use ?

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.

How to clean your RAM using a Notepad

Open up the Notepad
Next copy and paste this code
Quote: FreeMem=Space(10240000000)
Save the file as in .vbs format. For instance "cleaner.vbs"
You can customize the code and write 512 instead of 1024 which it represent the RAM you have. 512mb RAM. You can use whatever RAM you wish.

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Which database does Facebook & Google use ?