Cloud Computing - A Beginner's Guide

What is Cloud Computing and, How does the cloud work? 






Cloud Computing

This article is intended to discuss cloud computing, cloud computing basics, how does cloud computing work, cloud services, and what is cloud computing? Study of cloud computing and job opportunities after completing cloud computing course.


What is Cloud Computing and, How does the cloud work?

The term “cloud” is used as a substitute for the “internet”. Cloud computing points to any hardware or software like networks, software, analytics, servers, storage, databases, and intelligence provided over the internet (cloud) by any service provider.

Data, software, and source codes are often stored on hard drives, which is quite risky since difficult situations may arise such as hard disk crashes, data corruption, and eventual loss of the entire resources to work with. A cloud computing service provides various server, software, storage, and application services over the Internet so that they should be safe. They can be configured to handle any size of access or traffic and can scale up and down according to the volume and, frequency of requirement. Thus cloud computing is the delivery of different services through the Internet including different servers, software, storage, and applications. In other words, using cloud computing, customers can access software, infrastructure, platforms, devices, and other resources over the internet.

Customers can easily utilize these services available in the cloud without any prior knowledge of how to manage the resources involved.

Large companies such as Google, Amazon, IBM, Sun, Cisco, Dell, HP, Intel, Novell, and Oracle are investing in cloud computing to provide individuals and businesses with a variety of cloud-based solutions.

For example, Google Cloud is a collection of public cloud services provided by Google. All Application development is done on Google hardware. These include Google Compute Engine, App Engine, Google Cloud Storage, and Google Container Engine.

Cloud storage utilizes data centers with massive computer servers that store data and access it online through the internet. The users can remotely upload and store their content and retrieve it whenever they need it.


Advantages of cloud computing.

Businesses around the world are moving away from traditional on-premises services as cloud computing becomes more popular. In recent years, cloud-based services have radically changed the way businesses do business, enabling them to use information technology infrastructures, platforms, software, and applications via the Internet.

Users can devote more time and effort to their main business processes instead of spending their time learning about the resources they need to manage.

Cloud computing allows users to avoid significant capital investments because they can rent physical infrastructure from third-party providers.

Cloud computing infrastructure services leverage shared resources, allowing servers to work efficiently without being unnecessarily idle, which reduces costs while improving application development speeds.

The use of encryption reduces the chance of hackers or unauthorized parties accessing data other than concerned individuals.

Outsourcing all data information and infrastructure will free up companies to focus on the aspects of their business that directly contribute to income, profit, and growth.

A major benefit of cloud computing is that mobile devices can access corporate data, which is a great way to make sure no one is left behind. Employees with busy schedules or those who live far away from headquarters can use this feature to stay up-to-date with their customers and colleagues as has been seen in the recent past of the Covid 19 pandemic period.

Cloud infrastructure supports environmental considerations, supports virtual services instead of physical products and hardware, safety, reduces paper waste, improves energy efficiency, and reduces computer-related emissions.


Types of cloud computing

Not all clouds are created the same, and not every type of cloud computing is appropriate for every situation. Cloud is divided into four types

Public cloud

Private cloud

Hybrid cloud

Community cloud

 

Public cloud:

The public cloud is accessible all over the world through the internet. It is an open system source where platforms are provided free or pay-per-use criteria. A few examples of public clouds include Amazon Elastic Cloud Compute (EC2), Google App Engine, Blue Cloud by IBM, and Azure services Platform by Microsoft. This public cloud is structured in such a way that every business has independent devices.  Here anyone can upload large files as much as our defined conditions. In this, we have to only pay for what service we are using.

 

Private cloud:

In a private cloud, many of the benefits of cloud computing, including resilience, scalability, ease of service delivery such as access control security, and resource customization can be achieved. Many companies choose private clouds over public clouds because private clouds are easy to manage on a daily basis.  Gives different organizations more control and provides greater security for cloud servers

Hybrid Cloud

In a hybrid cloud, your organization's cloud deployment is divided into public cloud infrastructure and private cloud infrastructure. Sensitive data remains in your private cloud and maintains high-security standards. Operations that do not use sensitive data are performed in the public cloud, where you can extend your infrastructure and reduce costs as needed.

Community Cloud

The community cloud is a new twist on a private cloud model that provides a complete cloud solution for a particular business community. Enterprises share the infrastructure provided by CSP for software and development tools tailored to the needs of the community. In addition, each company has its own private cloud space built to meet the security, privacy, and compliance requirements common to the community.


 

Types of cloud computing

Cloud computing is a huge system that consists of three major services namely IAAS, PAAS, SAAS.


IAAS (Infrastructure As A Service)

IAAS provides infrastructure like servers, networking, virtual machines, and storage through the internet using a pay-per-use model. Customers can scale the configuration dynamically to meet changing requirements, and they are only billed for services they actually consume.

Resource deployment to a customer's environment can be done at any time by the provider

It can be expanded easily and saves a great deal of money.

Examples of IAAS types of cloud computing are Amazon Web Services (AWS), Sun, and vCloud Express.

 

PAAS (Platform as a Service)

PAAS is a service that allows third-party providers to provide hardware and software for users to build applications and pay on a per-use basis. Cloud service providers manage scalability, so the end-user need not worry about it. Besides Java, PHP, Ruby, Perl, and other programming languages, PAAS also provides different frameworks so they can easily understand the applications such as node.js, spring etc.

It allows developers to focus on the application's design while the platform handles the database and language. Developers need not worry about the specific language or database used in the application.

A few examples are the Google search engine, Facebook, etc.

 

SAAS (Software as a service): 

SAAS refers to a software distribution model where different services are controlled by a cloud provider and made available to users over the internet.  Users of SAAS cloud computing do not need to install so many software packages on their devices to access these applications. They can access the latest updated software via the internet.

This is a type of cloud computing service that provides a wide variety of hosted capabilities and services for developing and deploying web-based applications.

Examples of SAAS are MS Office web, Facebook, and Google Apps.

Study of Cloud Computing as a subject

There are many organizations conducting courses online on Cloud Computing. A few of them are Udemy, Pluralsight, Educative, Coursera, Cloud Computing with Amazon Web Services, and Microsoft Azure.

 

For further learning ...

MCQ AWS solution architect

MCQ Machine Learning

Qualify Linkedin, Google Cloud Platform

Machine Learning Linkedin Assessment

Amazon Web Services AWS Lambda 

Job prospects for Cloud professionals

Cloud professionals have been in high demand these days, and the Covid-19 pandemic situation has forced everyone to become more dependent on cloud computing space. According to a recent survey, the cloud sector as a whole has revenues of $ 1.6 trillion, and more than half of the market is made up of banks, financial services, and insurance. IT and telecommunications services, Retail and consumer goods also perform as well.

 







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