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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How to Speed up your internet connection using firefox

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1.Type “about:config” into the address bar and hit return. Scroll down and look for the following
entries:
network.http.pipelining
network.http.proxy.pipelining
network.http.pipelining.maxrequests
Normally the browser will make one request to a web page at a time.When you enable pipelining it will make several at once, which really speeds up page loading.
 
2.Alter the entries as follows:
 
Set “network.http.pipelining” to “true”
Set “network.http.proxy.pipelining”to “true”
Set “network.http.pipelining.maxrequests” to some number like 30. This means it will make 30 requests at once.
 
3.Lastly right-click anywhere and select New-> Integer.Name it “nglayout.initialpaint.delay” and set its value to “0"?.
This value is the amount of time the browser waits before it acts on information it recieves.
If you’re using a broadband connection you’ll load pages 2-3 times faster now.

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