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Cloud Computing Tutorial for Beginners - Benefits, Services, Types & Architecture

Posted on January 18, 2020 by Author

The term Cloud Computing was first introduced to the process of transferring "cloud" services and applications over the Internet. This is not something that appears overnight, but it relates to the time when computer systems start sharing computing applications and resources remotely.

So, if you want to know about cloud computing? You have reached the correct page. Here you will get the answer to your question and learn the basics of cloud computing. In simple terms, cloud computing refers to the different types of applications and services that are distributed in the Internet cloud. More important is that devices using these applications and services do not require any additional resources. Let’s start Cloud Computing Tutorial with Cloud Computing Training in Chandigarh.

Why Cloud Computing?

With the growth of computer and mobile users, data storage has become a priority in all fields. Large and small scale businesses today thrive on their data and they have spent huge amounts to maintain this data. This requires strong IT support and storage hubs. Not all businesses can support the high cost of in-house IT infrastructure and support services. Cloud computing is an affordable solution for them. Perhaps its efficiency in storing data, computations and low maintenance costs has also been successful in attracting large businesses.

Cloud computing reduces the demand for hardware and software on behalf of the user. The only thing a user is able to run is cloud computing system interface software, which can be as simple as a web browser, and the cloud network takes care of the rest. We have all experienced cloud computing at some time, used some popular cloud services or we are still using mail services such as Gmail, Hotmail or Yahoo etc.

While accessing the email service, our data is stored on the cloud server and not on our computer. It is less important whether cloud services are based on HTTP, XML, Ruby, PHP or other specialized technologies as far as it is user-friendly and functional. An individual user can connect to the cloud system from their own devices such as desktop, laptop or mobile.

Benefits of Cloud Computing

The potential for cost savings is the major reason for many organizations adopting cloud services. Cloud computing gives the freedom to use the services as per the requirement and to pay for what you use. Cloud computing has made it possible to run IT operations as an outsourced entity without many in-house resources.

Following are the Benefits of Cloud Computing:

  1. Low-priced IT infrastructure and computer expenses for users
  2. Improved performance
  3. Fewer Maintenance issues
  4. Instant software updates
  5. Upgraded adaptability between Operating systems
  6. Backup and recovery
  7. Performance and Scalability
  8. Increased storage capacity
  9. Increase data safety

You Must Read: Future Scope and Skills Required in Cloud Computing

Types of Clouds

There are four different cloud models that you can subscribe to as per business requirements:

  1. Private Cloud: Here, computing resources are deployed for a particular organization. This method is used more for intra-business interactions. Where computing resources can be operated, owned and operated by a single organization.
  2. Community Cloud: Here, computing resources are provided for community and organizations.
  3. Public Cloud: This type of cloud is normally used for Business to Consumer type communications. Here the computing device is owned, supervised and operated by the government, and educational or business organization.
  4. Hybrid Cloud: This type of cloud can be used for both type of communications - Business to Business and Business to Consumer. This deployment system is called a hybrid cloud as the computing devices are bound together by numerous clouds.

Cloud Computing Services

The three significant Cloud Computing Offerings are

  • Software as a Service (SaaS)
  • Platform as a Service (PaaS)
  • Infrastructure as a Service (IaaS)

Several businesses use some or all of these elements according to their necessity.

SaaS (Software as a Service)

SaaS or software as a service is a software delivery model in which applications are received by a vendor or service provider and made possible to customers over a network/internet. SaaS is becoming a frequently prevalent offering model as underlying technologies that supports Service Oriented Architecture (SOA) or Web Services. By the internet, this service is possible for users anywhere in the world.

Traditionally, software application demanded to be obtained upfront & then installed it onto your computer. SaaS users on the other hand, instead of acquiring the software subscribes to it, usually on a monthly basis via the internet.

Anyone who requires access to an appropriate piece of software can be contributed as a user, whether it is one or two people or every thousand of employees in an organisation. SaaS is cooperative with all internet authorised devices.

Numerous important tasks like accounting, businesses, invoicing and planning all can be accomplished using SaaS.

PaaS (Platform as a Service)

The platform is referred to as PaaS as a service, it provides a platform and environment to allow developers and the creation of applications and services. The service is hosted in the cloud and accessed by users via the Internet.

To understand it in a simple word, compare it to making a picture where you are provided with paint colours, different paintbrushes and paper by your school teacher and all you have to do is make a beautiful picture using those tools.

Paa services are constantly updated and new features are added. Software & Web developers and companies can benefit from PaaS. It gives a platform to boost application development. This includes software support and management services, storage, networking, deployment, testing, collaboration, hosting, and maintaining applications.

IaaS (Infrastructure as a Service)

IaaS (Infrastructure As A Service) is one of the necessary service models of cloud computing beside PaaS( Platform as a Service). It gives the path to computing resources in a virtualized atmosphere “the cloud” on the internet. It provides computing infrastructure such as virtual server space, network connections, bandwidth, load balancers and IP address. The pool of hardware resources is extracted from multiple servers and networks that are typically distributed across multiple data centres.

IaaS is a full package for computing. For small scale businesses that are looking to cut costs on IT infrastructure, IaaS is one of the solutions. It costs a lot of money annually to maintain and purchase new components such as hard-drives, network connections, external storage devices, etc., which a business owner could have saved for other expenses by using IaaS.

What is Cloud Computing Architecture?

Let's take a look at cloud computing and see what cloud computing is made of. Cloud computing includes two components: front end and back end. The front end is the client part of the cloud computing system. It contains the interfaces and applications required to access the cloud computing platform.

While the back-end cloud refers to itself, it includes the resources that are required for cloud computing services. It has virtual machines, servers, data storage, security mechanisms etc. It is under the control of the providers.

Cloud computing distributes file systems spread across multiple hard disks and machines. The data is not stored in only one place and if one unit fails then the other will end automatically. User disk space is allocated on a distributed file system, while another important component for resource allocation is algorithms. Cloud computing is a robust distributed environment and depends largely on robust algorithms.

Virtualization and Cloud Computing

Virtualization is the division of a single physical server into multiple logical servers. Once the physical server is partitioned, each logical server behaves like a physical server and can run an operating system and applications independently. Many popular companies, such as VmWare and Microsoft, provide virtualization services, where instead of using your personal PC for storage and computing, you use their virtual server. They are fast, less costly and time-saving.

Virtualization comes in handy for software developers and testers, as it allows the developer to write code that runs in many different environments and is more important for testing that code.

Virtualization is essentially used for 3 foremost purposes

  • 1) Network Virtualization
  • 2) Server Virtualization
  • 3) Storage Virtualization

Network virtualization: It is a method of combining available resources in a network by dividing the available bandwidth into channels, each of which is independent of the others and each channel is independent of the others and can be assigned to a specific server or device.

Storage Virtualization: It is the pooling of physical storage from multiple networked storage devices that appears to be a single storage device that is managed from the central console.

Server virtualization: Server virtualization is the masking of server resources such as processors, RAM, operating systems, etc. from server users. The purpose of server virtualization is to increase resource sharing and reduce the burden and complexity of computation from users.

Virtualization is the key to unlocking cloud systems, which makes virtualization so important to the cloud that it decoys software from hardware. For example, the PC may use virtual memory to borrow additional memory from the hard disk. Hard disks typically have a lot more space than a memory. Although virtual disks are slower than real memory, if properly managed replacement works properly. Similarly, there is a software that can copy the entire computer, which means that 1 computer can perform the task equivalent to 20 computers.

Cloud Computing is very welcoming by many companies and they need candidates but firstly these companies test the candidate capability nowadays so, learn the concepts with practical experience, have some programming as well as scripting knowledge and clear your basics concepts. Take such courses from institutions that meet the demands of the industry (certificates will be an add-on) and CBitss Technologies is the Best Cloud Computing Training in Chandigarh because it fulfils all the requirements which you need to clear the examination and industry requirements.

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