Cloud computing, or "the cloud," is storing and accessing your programs and data on the internet rather than on the hard drive of your computer.
What is cloud computing and where is the cloud?
Today, nearly all things are done on the cloud. Your data is there, your applications execute there, and you can use it wherever you are. Due to this, the need for Certified Cloud Architects is increasing rapidly in every sector.
Where is the Cloud, then?
Cloud is actually not a location which you can look at. Cloud is a collection of extremely powerful computers which are connected by the internet. They store your data and let you use applications from anywhere on the world.
This is a big deal for three reasons:
1. You don't have to purchase or maintain any servers or machines.
2. It never lacks space—it's virtually unlimited.
3. Your apps or files can be accessed from any internet-enabled device.
When did cloud computing begin?
The Internet started in the 1960s but individuals did not have an idea of its complete business application until the 1990s. That is when businesses started providing services through the Internet. They were known as Application Service Providers (ASPs).
ASPs employed their own computers to execute applications for other businesses. Businesses paid a subscription to utilize them on the internet.
But cloud computing, as we have it now, started around the late 1990s. And it has come a long way since then.
How frequently do you use the cloud?
Consider your day. You are using the cloud more than you realize. Here are a few examples:
• Social media (e.g. Facebook or Instagram)
• Online file saving (e.g., Google Drive)
• Paying bills online
• Shopping on the internet
Want to Learn More?
Join. our Google Cloud Certification Program and discover more about cloud computing.
How does cloud computing function?
There is an application called Customer Relationship Manager (CRM) that is cloud-based. It helps sales teams carry out their operations in a better manner.
Here's how:
A. a salesperson can utilize any mobile internet connection or smartphone to verify customer information. They can also update the data in real time, without having to go to the office. This saves time and improves work.
Types of Cloud Services
When you query, "What is Cloud Computing?", the response is quite generic. To simplify it further, cloud services fall into three broad categories:
• SaaS (Software as a Service)
• PaaS (Platform as a Service)
• IaaS (Infrastructure as a Service)
1. SaaS refers to Software as a Service.
In SaaS, the cloud provider hosts a copy of the software and allows you to utilize it via the internet. You install nothing on your computer. You simply access the computer program using a web browser or application.
Example:
Salesforce has something that they offer online named CRM (Customer Relationship Manager). It assists you in managing customers, but the software is owned by and operated by Salesforce.
2. PaaS – Platform as a Service
With PaaS, the cloud business gives you an environment where you can experiment and build your own applications. You're able to use their tools, storage, and code editors but you cannot manage the system settings, operating system, or servers.
Example
If you're a developer, you can use Google App Engine to build apps without worrying about servers or setup.
3. IaaS – Infrastructure as a Service
With IaaS, the cloud provider gives you virtual machines and storage. You decide what kind of system you need (i.e., Linux or Windows), and it runs on their hardware. You won't have to care where the machine is or how it is set up.
Example:
You wish to have a Linux machine, and you have one in the cloud. You use it as if it were yours, but the company that owns the cloud owns the actual machines and network.
Types of Cloud Computing
There are three broad types of cloud computing that are dependent on the use of users:
• Public Cloud
• Private Cloud
• Hybrid Cloud
Public Cloud
A public cloud can be used by anyone. It is generally free or low-cost. Although it might act as a private cloud, it is not as secure as it can be used by anyone. That would mean there is a higher probability of a hacker or an attack.
Private Cloud
One organization uses a private cloud. It can be operated by the company or by another company. Private clouds are more secure, but expensive. The company has to take care of the hardware and be careful about new threats to safeguard the data.
Hybrid Cloud
A hybrid cloud is a mix of the public and private clouds. It offers you the benefits of both.
Here's a straightforward example:
A research firm has two kinds of data—some of them are already published and some are being researched. The published data can be stored on the public cloud, but the research data have to be kept secret. So, they store that portion on their own private servers. This is a hybrid cloud.
Who employ cloud computing?
Now that you know what cloud computing is, let us find out who employs it—people or businesses.
Cloud for People (Users)
If you use the internet extensively from home or a small office, the chances are that you may already be using the cloud.
Examples:
• Google Drive
• Dropbox
These enable you to store documents online and retrieve them wherever.
Cloud for Business
For companies, cloud computing is not a minor issue. Companies might use:
• SaaS to execute software online
• PaaS lets you create apps on cloud platforms.
• IaaS to rent virtual computers and set them up their own way
Why are firms shifting to the cloud?
Cloud computing speeds up, reduces the cost of, and simplifies.
Benefits of Cloud Computing
Following are the best benefits:
1. Quick Setup : You can have applications live in days or even hours instead of waiting for months.
2. Access Anywhere : All you need is an internet connection to run your apps on any device.
3. Lower Costs : No need to pre-buy costly hardware or software. You only pay for what you use.
4. No Maintenance : Maintenance, hardware, and updates are handled by the cloud provider.
5. Better Security : When you misplace a device, your data won't be lost because it is safely stored in the cloud. You won't be missing crucial files if your computer or laptop is stolen or misplaced.
How to obtain Cloud Computing certification?
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Conclusion
Cloud computing changed how people and companies store data, retrieve it, and exchange it. It is simple, cheap, and convenient, and this is the reason it continues to grow in most sectors. Understanding its types and advantages enables you to make smart tech decisions.
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