Fig. 1: A Representational Image of Cloud Computing Technology
The Idea Phase – This phase incepted in the early 1960s with the emergence of utility and grid computing and lasted till pre internet bubble era.
- The Pre-cloud Phase – The pre-cloud phase originated in the 1999 and extended to 2006. In this phase internet as the mechanism to provide Application as Service got developed.
- The Cloud Phase – The much talked about real cloud phase started in the year 2007 when The classification of IaaS, PaaS and SaaS got formalized. The history of cloud computing has witnessed some very interesting breakthroughs launched by some of the leading computer/web organizations of the world. The following picture exhibits the significant applications which triggered the growth of cloud computing.
Fig. 2: A Figure Illustrating Significant Applications of Cloud Computing Technology
Varieties of Cloud Computing
Fig. 3: A Diagram Illustrating a Public Cloud and Private Cloud
Cloud Computing Framework
Fig. 4: A Diagram Illustrating Three-Layered Cloud Computing Framework
- Unlimited access of data and applications from any part of the world.
- A cloud computing system reduces your cost of hardware. You can enjoy the access to fastest speed and processing without actually purchasing this hardware on your own. Moreover, no issues with the limited memory on your hard drive or flash drive. The cloud computing system manages it all.
- Cloud computing systems provide the organization to access the computer applications. The company needs to pay a metered fee to a cloud computing company instead of purchasing set of software licenses for each employee.
- Data back-up on the cloud
- Google’s new chrome OS has used the concept of cloud computing, wherein users will be able to store their data online which can further be accessed and recovered from anywhere in the world from their cloud. It is integrated with applications like Google Docs, Google Calendar, Google Weather, Google Calculator, etc.
- Microsoft also headed the league with the launch of Windows Azure in 2009; an Operating System solely designed to allow developers to provide users with “Cloud Computing” technology and products to use, on the fly.
- icloud is a cloud storage and cloud computing service introduced by Apple Inc. on June 6, 2011. It allows users to store data such as music files, videos etc on remote clouds (remote servers) which can later be downloaded into multiple Apple devices like iphones, ipads, iphones, and computers running Mac OS or Microsoft Windows.
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