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Saturday, February 26, 2011

Hawk-Eye : How does it work?

It’s the cricket world cup season! So, all the fans are getting anxious, and the game is getting hot. Cricket is a game where win or loss defined by a thing margin. Recently, a lot of money involved in the game and lot of spectators waiting to see a favorable result for their team. Therefore not to mention the responsibility of the players to win games and play without mistakes. But all the thing in a cricket match defined by the decisions of the umpires.



Umpires are also human. So the errors may occur when they taking the decision. To support umpires taking the correct decision, lot of new technical utilities are used. This is going to be about one of those technical advancements of the sport; Hawk-eye.

Friday, February 25, 2011

Where's your data? – Google and Microsoft Data centers

Are you worried about where you keep your money? – Answer is obviously “Yes”. In the modern information society, data is equally or more important when compared with money. Not to mention that data is referred here to the information gathered at the computers. But how many of you know about where your data is stored. We know about data stored in our computer, or in our backup device. But what about the data stored in internet.



Today most people use internet based email services, picture albums, video hosting facilities, document management systems…. and lot more. Technically, considerable amount of our digital information is out there on the internet. We use Gmail, yahoo mail, live mail for our email purposes. And flicker, Picasa for sharing our pictures. YouTube for videos and Google Docs, Office online for various documents. But the locations of the storage and what happen behind is a complete mystery for lot of us.

All those data used and gathered by internet services and applications are stored at huge data centers of those service providers (if not, at third-party datacenters). Following is a quick look at the datacenters used by two information giants; Google and Microsoft.