26
Dec 2020
Cloud Computing
Introduction:-
Everything nowadays is moved to the cloud, running in the cloud, accessed from the cloud, or may be stored in the cloud. So simply cloud computing refers to “the cloud” is a service that allows people to use online services that are generally available through any device with an internet connection. This means that the user does not need to be at a certain location in order to access certain data. From computing and analytics to secure and safe data storage and networking resources, everything can be delivered within no time with the help of the cloud. The goal of cloud computing is to deliver these services over the internet in order to offer faster innovation, flexible resources, and economies of scale. Whenever we share an important file over Onedrive with our friends through the web or through a mobile, download a picture, able to watch a Netflix show, or play an online video game. It all happens on the go! The best part of cloud computing is that it saves us a lot of time and money. We don’t have to buy any machine or install any kind of software. Everything will be handled by the cloud platform which is running these applications whether it is Google, Microsoft, or Amazon. Many such tech giants have already switched from traditional computer hardware to more advanced cloud architecture. Not just that these companies are the most popular cloud service providers in the market today. As more and more companies go strategic digital transformations designed to utilize the power of the cloud, they need more IT professionals and leaders with the expertise to extract the best business results out of their investments.
Cloud Models:-
There are two types of models in cloud computing:-
• Service model
• Deployment model
The service model basically means the kind of service the cloud offers. This service can be
divided into further modules. The deployment module means how can you deploy your
application to them i.e., in which way you can upload your application on the cloud.
Service Model:-
There are three types of service models in cloud computing. These are
• Infrastructure as a service(Iaas)
• Platform as a service(Paas)
• Software as a service(Saas).
Infrastructure as a service(Iaas):-
It is a service where you have to choose an operating system and you get that server on the cloud. For example, you need a Linux system on the cloud, then you request the cloud provider for a Linux system and they will give you a fresh system to work on. So they will give the IP address and password. You can remote desktop into that server and that server is fresh. You can install anything on that server and you can make that server anything. You can make that server a web server, database server, etc. It provides virtualized computing resources over the internet. No worries about the underlying physical machine because you don’t have to manage the physical machine. All of that is managed by the cloud provider. It abstracts the user from the physical machine.
Platform as a service(Paas):-
It is a service where you don’t get access to the operating system rather you get access to the user interface. For example, you want to host a website, then you take a service from AWS or Azure and you say you want a platform, not the whole infrastructure. So they launch a server and don’t give you the IP address and password to it. So you don’t get access to the operating system. Instead, they give you a button which is to upload and upload your website onto it. You don’t have to install any software, you don’t have to manage the files over there you don’t have to do anything. You just have to upload your files and those files will be automatically deployed on whatever link they will give you when you click on that link you will be directed to the website will be deployed as it is. You don’t have to manage the operating system at all. Software as a service(Saas):- It is a service where you don’t get a server or a user interface
rather you will only just get the software. For example, Salesforce Cloud is the most common
example of this type. If you launch a server on the cloud you are getting Windows operating
system. As we all know Windows operating system is licensed, but if we are renting the
server on the cloud basically using Windows as software because you have rented Windows
operating software as well.
Deployment Model:-
There are three types of deployment models in cloud computing. These are
• Public cloud
• Hybrid cloud
• Private Cloud
Public Cloud:-
It is basically when you are sharing your server with a host of different
people.
Hybrid Cloud:-
It is actually a mixture of both public cloud and private cloud. So if you have an application where you are using public cloud and private cloud both, then this is called a Hybrid cloud.
Private Cloud:-
It is basically the most confidential place for storing data. Here you host your own servers or buy a server or you set up your own and deploy your application. Cloud Providers:-
• Rackspace
• DigitalOcean
• Microsoft Azure
• Google Cloud Platform
• VMware
• AWS, etc.
Advantages:-
• More secure
• More agility
• You can backup and recover
• Cost saving
• Unlimited storage
• Automatic updates
Disadvantages:-
• Security
• Internet Dependent
• Downtime
• Lock-In
Conclusions:-
Nowadays cloud computing is the future of technology. Though there is concern about the risk of data present in the cloud, still there are no major issues found till now. So we can rely on technology. Tech giants like AWS, IBM, Google, Microsoft, etc, are doing research on cloud computing to deliver the best technology to clients.
TechCtice Cloud offers the most open and secure public cloud platform for business, a next-generation hybrid multi-cloud platform, advanced data, and AI capabilities, and deep enterprise expertise across all industries.
