1. iPod

Do you remember the cassette Walkman? It could barely hold 12 to 15 songs, until this sleek little white device came along and revolutionized the music industry. It has amazing storage capability, the largest model being able to hold more than 30,000 songs! Not surprisingly, iPod has made an astronomical number of sales (more than 110m units).

 




 

2. GPS

GPS or Global Positioning System was developed in 1978, and was made to pinpoint your exact position to within a couple of meters with the help of up to 32 satellites. It became a great invention for explorers, paramedics, and pilots but now even for common people who have GPS enabled devices in their cars or even GPS based apps on their smart phones.

 




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