What is Cloud Computing?
Cloud computing is a platform that allows people to access and share data in a secure and scalable way; it just requires an internet connection. In other words, Cloud computing can also be thought of as internet-based computing where services such as servers, storage, and applications are delivered to the company’s computers and other devices through the internet.
Whether large or small, businesses have to spend a considerable amount on maintaining and processing their data which requires a storage hub and IT support. However, not every business is financially ready to pay for IT infrastructure and back up support services. They find Cloud Computing as a cheaper solution because it decreases the hardware and software demand.
Types of Cloud Computing
From the name itself, we get the idea that this cloud computing is accessible to everybody. It is basically used for B2C or B2B types of interactions where either governments or big organizations handle computing resources.
In a private cloud, all the computing resources and services are deployed and dedicated to a single organization. Here, the computing resources are owned and governed by the same organization. Also, some organizations pay third-party cloud service providers to host and maintain their private cloud.
In a community cloud, resources are shared between several organizations belonging to a specific community having similar needs. This service is preferred by a group of people having common or similar interests.
A hybrid cloud is a combination of public and private clouds. Here, the resources of private and public clouds are shared to make data handling more flexible and provide better services than ever before.
Cloud Computing Services
Software as a Service (SaaS):-
It is a cloud service where online software licensing and access is given to the clients rather than installing it on their individual computers. Cloud computing service providers host on-demand applications and avail them to the customers over the internet. Through SaaS, organizations do not have to install and run applications in their own data centres. This helps clients to get rid of the costs of hardware acquisition and their maintenance.
Platform as a Service (Paas):-
Platform as a Service (PaaS) provides an environment that facilitates developers to build and create applications and services. It keeps on updating and adding new features to the software and application along with providing storage, networking, testing, maintaining and deploying applications.
Infrastructure as a Service (IaaS):-
Infrastructure as a Service (IaaS), help in handling data over the internet. In this IaaS, customers are provided infrastructures such as server space, bandwidth, network connections, load balancers, and IP addresses. By opting for this service, users will not have to worry about buying and maintaining components such as hard drives, network connections, etc.
Cloud Computing Architecture
Front End Architecture:-
The front end is used by the client. It contains client-side interfaces and applications that are required to access the cloud computing platforms. The front end includes web servers (including Chrome, Firefox, internet explorer, etc.), thin & fat clients, tablets, and mobile devices.
Back End Architecture:-
The back end is used by the service provider. It manages all the resources that are required to provide cloud computing services. It includes a huge amount of data storage, security mechanism, virtual machines, deploying models, servers, traffic control mechanisms, etc.
Advantages of Cloud computing
Cost savings – It is one of the best and cost-effective options to keep your data securely. You can choose the required storage option as per your business requirement, such if you want just to store the data or also want to perform some operation on it.
Accessibility – Cloud computing has made it possible to access files from anywhere with an Internet connection to avoid time zone and geographic location issues.
Productivity – To process and organize data, IT teams have to take care of hardware setup, software patching and various other IT management chores. Cloud computing platform really make you free from all these work and let you concentrate more on important business goals.
Recovery – We cannot afford to lose our data, and for that sake, everyone should invest in an emergency backup plan by taking cloud storage help.
Disadvantages of Cloud Computing
Ongoing Costs – There is some bandwidth allowance for every service. Once you cross that bandwidth, you may have to pay extra charges for that. Similarly, as your business grows and demands more resources and storage, expenditure also increases.
Security – Remember, when you are storing your sensitive data on the cloud, you are trusting a third party. Therefore, better be informed from starting that cloud storage service is secure, but what if getting hacked or lost.
Internet connectivity – Cloud computing is totally based on internet connectivity. To maintain consistency in your work, you need to have good internet connectivity.
Top Cloud Computing Service Providers in 2020
- Microsoft Azure
- Amazon Web Services (AWS)
- Google Cloud
- Alibaba Cloud
- IBM Cloud
- Rackspace Cloud