Cloud computing means on demand delivery of IT resources via the internet with pay-as-you-go pricing. It provides a solution of IT infrastructure in low cost.
Cloud Computing can be defined in other ways also like:
The 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.
Cloud computing is the delivery of computing services—servers, storage, databases, networking, software, analytics, intelligence and more—over the Internet (“the cloud”) to offer faster innovation, flexible resources and economies of scale. You typically pay only for cloud services you use, helping lower your operating costs, run your infrastructure more efficiently and scale as your business needs change.
Reason behind the use of Cloud Computing
Actually, Small as well as some large IT companies follows the traditional methods to provide the IT infrastructure. That means for any IT company, we need a Server Room
In that server room, there should be a database server, mail server, networking, firewalls, routers, modem, switches, QPS (Query Per Second) , configurable system, high net speed and the maintenance engineers.
To establish such IT infrastructure, we need to spend lots of money.
To overcome all these problems and to reduce the IT infrastructure cost, Cloud Computing comes into existence.
Characteristics and Features of Cloud Computing
The cloud works in the distributed computing environment. It shares resources among users and works very fast.
2) High availability and reliability
Availability of servers is high and more reliable, because chances of infrastructure failure are minimal.
3) High Scalability
Implies “on-demand” providingof resources on a large scale, without having engineers for peak loads.
With the help of cloud computing, multiple users and applications can work more efficiently with cost reductions by sharing common infrastructure.
5) Device and Location Independence
Cloud computing enables the users to access systems using a web browser regardless of their location or what device they use e.g. PC, mobile phone etc. As infrastructure is off-site (typically provided by a third-party) and accessed via the Internet, users can connect from anywhere.
Maintenance of cloud computing applications is easier, since they do not need to be installed on each user’s computer and can be accessed from different places. So, it reduces the cost also.
7) Low Cost
By using cloud computing, the cost will be reduced because to take the services of cloud computing, IT company need not to set its own infrastructure and pay-as-per usage of resources.
8) Services in pay-per-use mode
Application Programming Interfaces (APIs) are provided to the users so that they can access services on the cloud by using these APIs and pay the charges as per the usage of services.