2.1 The onward march of third information revolution in the first  (Page 6/14)

“The internet may sometimes seem like a massive astral projection,............ Not just Google and Amazon, but Microsoft, Rackspace, SGI and many other companies have used striking economies of scale to acquire cheap commodity hardware and build sprawling, multihectare server farms.

“Twitter, Facebook, Google – their performance needs rise astronomically everyday”...... To keep up , companies buy servers by the shipping container with all the power and networking connections preconfigured. An IT manager plugs the container into a power supply, a network connection, and a cold water tap, and presto, 1400-odd more servers come on-line.”[Sandra Upson, ibid]

In 2008, Google launched App Engine (application engine). Any user can upload his set of Python or Java Codes on Google App Engine site. These are modified and run on any number of desired machines. Any Web Application which becomes highly popular will be sensed and quantum of computing time is increased for your Web Application.

Cloud gives you the flexibility which is not found in any corporate offices. 10 servers can be run for 1000 hours at the same price as 1000 servers can be run for 10 hours.

Just as we have Electric Public Utility Service, in exactly the same manner we have Computational Public Utility Service. User will pay for what they use and don’t have to install their computational machines.

“The now-routine tasks of cloning virtual machines and distributing them through multiple data centers make for easy backups. And at a few cents per CPU-hour, cloud computing can be cheap as dirt”.

Data stored in the clouds must be safe and indestructible. For this cloud to cloud smooth transfer of data should be assured.

In the second decade of 21 ^st century, we will see how all the computer functions are carried out by the internet as one entity .

Technology 7_DRONE AIRCRAFT

In May 1898, at the Electrical Exposition in New York City’s Madison Square Garden the concept of a remotely piloted vehicle was demonstrated. Nikola Tesla demonstrated the concept of “telautomaton” - small boat operated remotely by radio. This could be used as a torpedo against the enemy ship. In that year itself, Tesla sent a paper titled “Remotely controlled aircraft as an aerial torpedo” to The Electrical Engineer magazine. This paper was rejected as too fanciful a paper.

As early as 1917, the US Navy pursued the idea of a pilotless aircraft for use against German U-boats. During the Second World War, Nazi forces covered the British skies with thousands of pulse-jet-powered flying bombs. In 1982, Israel used drones against Syrian forces in Lebanon.

In the first decade of 21 ^st century, these pilotless vehicles have matured into fully controllable and reusable combat aircraft. Their miniaturized forms act as easily deployed eyes in the skies for the ground forces.

Over the years, unmanned drones have evolved into unmanned aerial vehicles(UAV). These are also called unmanned aircraft systems (UAS). These UAV can function in a variety of ways as shown in the Table 2.