Decades of research on virtualization, utility computing, distributed computing, software applications, web and networking resulted in a futuristic technology known as Cloud Computing. Various sources have different definitions for Cloud; some of them are as follows:
Wikipedia Says, "Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers connected through a real-time communication network such as the Internet."
Webopedia Says, "Cloud computing is a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications."
About.Com Says, "Cloud Computing is a somewhat nebulous term to describe users 'renting' or borrowing online software instead of actually purchasing and installing it on their own computers."
However, in simple words Cloud Computing is a practice of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer. It can also be called Grid Computing. It has become our next step towards evolution of IT based products and services.
Now, there are many misconceptions about Cloud Computing.
Some of them are enumerated below:
- It Requires Technical Expertise:
In 2012, a survey conducted by Citrix ends up on a surprising node. A majority of adults in STATES have no idea about what cloud computing is? 51% of participants believed that it is about weather and storm, 54 % said that they never experienced it but 95% participants were actually found using it. Some of the most common forms of cloud computing used in our daily routine are email programs like Gmail or Yahoo, Online Banking, eCommerce Portal, Digital Libraries etc..
- It is in Vogue:
In past few years, cloud remains a trending term on the web and the trend graph is still moving towards sky. Trend is not the only rising factor about the cloud, the level of investment has also increased in cloud which ensures that it cannot disappear overnight. According to McKinsey consulting firm, "Economic weightage of cloud technology would be around $1.7 trillion to $6.2 trillion by the year 2025".
- Insecure Platform
As far as security is concerned, cloud platform is a very alluring target because of the mass records or data that they hold. But as per the statistical data, cloud companies invest too much money on security in comparison to other businesses. Homeland security, department of defence, CIA and vast majority of Fortune 500 companies are somehow relying on cloud computing.
- Not Much Reliable
We have several examples of outages observed in past but stats presents us a completely different picture. As per the survey conducted by Microsoft and other big cloud providers in different parts of world confirmed that the businesses moved to cloud are experiencing more uptime and service availability than others.
- It is too Expensive
In traditional IT environment when we experience server failure, it usually consumes 3 to 5 days to obtain a new server, set it up, install OS & patches, reload database and restore historic data. It heavily impacts business model due to various important application which were being executed on that server. In case of Cloud, if any hardware failure is imminent, it automatically migrates your server to another machine to prevent data loss and down time.
So, after having a look at the above mentioned misconceptions about cloud computing, it can aptly be said that “Cloud computing is definitely the call of the day”!