Tuesday 13 August 2013

Cloud computing is a colloquial expression

INTRODUTION 


Cloud computing is a colloquial expression used to describe a variety of different types of computing concepts that involve a large number of computers that are connected through a real-time communication network (typically the Internet). Cloud computing is a jargon term without a commonly accepted non-ambiguous scientific or technical definition. In science, cloud computing is a synonym for distributed computing over a network and means the ability to run a program on many connected computers at the same time. The phrase is also, more commonly, used to refer to network based services which appear to be provided by real server hardware, but which in fact are served up by virtual hardware, simulated by software running on one or more real machines. Such virtual servers do not physically exist and can therefore be moved around and scaled up (or down) on the fly, without affecting the end user - arguably, rather like a cloud.



ADVANTAGES

Cloud computing relies on sharing of resources to achieve coherence and economies of scale similar to a utility (like the electricity grid) over a network.At the foundation of cloud computing is the broader concept of converged infrastructure and shared services.

The cloud also focuses on maximizing the effectiveness of the shared resources. Cloud resources are usually not only shared by multiple users but as well as dynamically re-allocated as per demand. This can work for allocating resources to users in different time zones. For example, a cloud computer facility which serves European users during European business hours with a specific application (e.g. email) while the same resources are getting reallocated and serve North American users during North America's business hours with another application (e.g. web server). This approach should maximize the use of computing powers thus reducing environmental damage as well, since less power, air conditioning, rackspace, and so on, is required for the same functions.

The term "moving to cloud" also refers to an organization moving away from a traditional CAPEX model (buy the dedicated hardware and depreciate it over a period of time) to the OPEX model (use a shared cloud infrastructure and pay as you use it).

Proponents claim that cloud computing allows companies to avoid upfront infrastructure costs, and focus on projects that differentiate their businesses instead of infrastructure.Proponents also claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and enables IT to more rapidly adjust resources to meet fluctuating and unpredictable business demand.




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Pilot Career Guide: International Airline Pilot's Career Guide Learn Step By Step How to Become an International Airlines Pilot Paperback– July 12, 2013



PILOT’S CAREER GUIDE BY NIRIHA KHAJANCHI

Cover for 'Pilot’s  Career  Guide   By  Niriha Khajanchi'
By AeroSoft Corp
Rating: Not yet rated. 
Published: July 13, 2013 
Words: 25,040 (approximate)
Language: English
ISBN: 9781301650040


SHORT DESCRIPTION

International Airline Pilot’s Career Guide Learn Step By Step How to Become an International Airlines Pilot By Niriha Khajanchi and Shekhar Gupta 

EXTENDED DESCRIPTION

1. Your Aviation Career Starts Here
2. Pilot Training
3. Flight Ratings – SPL, PPL, CPL, ATPL
4. Pilot and Personal Computer
5. Medical Requirements for Pilots
6. Pilot Training – Where to get it.
7. Best Commercial Pilot Training Schools
8. Aviation Crew [Flight, Cabin, Ground]
9. Aircrafts [Single Engine, Multi Engine, Prop, Turbo Prop, Jet]
10. Best Paying Flying Jobs
11. Pilots Interview Questions
12. Aviation Organizations
13. List of Abbreviations
14. Aviation Jargons

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