Some Amazing fact about memory (petabyte,exabyte,zettabyte) And How much data exists on the Web?

Now the Digital world is growing so fast that our need for storing data is increasing day by day. I remember once our computer teacher told me that he purchased a  Personal Computer XT/370 and paid more than a lakh for it and contains 512K of memory chips. but Now you can find 64-bit computers with 8 GB of ram laptops. Even mobiles come with 3 Gb ram(Note 3 of the same gang)

And going towards hard disk we are no more talking about GBs now it's all about Terabytes. And not stop here we moved toward Petabyte(1000 TB). I here remember
 Moore’s Law, says that the number of transistors on a chip doubles every 1.5 to 2 years.

Let me share an interesting fact:-

The biggest photo-sharing website Facebook has over 15 billion photos. For each uploaded photo, Facebook generates and stores four images of different sizes, which translated to a total of 60 billion images and 1.5 petabytes of storage, to date this will be even greater.

 If the average MP3 encoding for mobile is around 1MB per minute, and the average song lasts about four minutes, then a petabyte of songs would last over 2,000 years playing continuously.

If the average smartphone camera photo is 3MB in size and the average printed photo is 8.5 inches wide, then the assembled petabyte of photos placed side by side would be over 48,000 miles long - almost long enough to wrap around the equator twice.

One petabyte is enough to store the DNA of the entire population of the US – and then clone them, twice.

If you counted one byte per second, it would take 35.7 million years.

It would take 223,000 DVDs (4.7 GB each) to hold 1Pb.

It would take 746 million 3.5-inch high-density floppy discs (1.44Mb each) to hold one petabyte; 746 billion floppy discs weigh 13,422 tonnes (if each one weighs 18g)

Astronomical project: “The Square Kilometer Array (SKA), funded by 20 countries to the sum €1.5bn is a radio telescope that can read faint signals from the Big Bang." 

The SKA (due to be completed in 2024), estimates Big Blue, will generate 1,376 petabytes per day, twice daily global internet traffic.

Facebook was storing 100 petabytes one year ago, according to its IPO filing to the US Security and Exchange Commission on 1 February 2012.

Google processed about 24 petabytes of data per day in 2009.

 It is estimated that the human brain's ability to store memories is equivalent to about 2.5 petabytes of binary data

How much data exists on the Web

Now a big question raises here if I want to download the internet then what should be the size of the hard disk.

or in other words How much data exists online?

So here is the Answer according to some research it is  1.2 Zettabytes (1.3 trillion gigabytes) is now stored. So if you want to download the complete data from the internet and you are getting the speed of 

100MB/sec then it will take 380517 years to complete.

This year it is estimated that 70 percent of the data coming on the internet will be user generated and it will be about  900 Exabytes.

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Some Amazing fact about memory (petabyte,exabyte,zettabyte) And How much data exists on the Web?


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