AWS – An Introduction to the Cloud

What is AWS (Amazon Web Servers)?

In the year of 2006 Amazon has started their AWS (Amazon Web Servers) IT services in the market in the form of web servers which is popularly know as cloud computing, where we no needed to plan for the IT infrastructure which consumes the time in advance where now the IT infrastructure can be spin up instantly and results very faster.  Where we pay only for that what we use and no up-front cost and no longer commitments which made the AWS very efficient in cost wise.

What is a Cloud Computing?

Cloud computing is a web-based or Internet-based computing services where remotely hosted servers are networked in a centralized location with huge data storage and online resources to be accessed remotely.

Instead of building their own infrastructure we can use the shared computing and storage.

• Where the users can be the provision with resources on-demand and release the resources.
• Users can access the network with a proper security.
• Users can access the resources and pay with the pay-as-you-go model and they will be charged on the type of resource and usage.

Advantages of Cloud Computing.

Easy Access to the Information –  We can access our data or information once registered on the cloud, we can access the account and data from anywhere in the world where we have the internet connection.

Cost-Efficient –  Having the own servers and tools is time-consuming and expensive, where we needed to order the infrastructure, pay, configure and install them long before and test the infrastructure, whereas the cloud computing is already tested by the service provider and we only pay for the services we use.

Reliability – The cloud computing provided a manageable, reliable and consistent service then that of in-house Infrastructure, where the cloud guarantees 24×7 and 365 days of service if something fails the hosted applications and services are easily transferred to the next available servers.

Unlimited Storage – Cloud computing will provide almost an unlimited storage, we needed not to worry about the outage of storage space, we can also access as much less as we needed.

Backup and Recovery – The cloud computing provides a good backup and restore the same date with easier storing, the service providers have enough technology to get recover the data with a convenient recovering with the simple click anytime we needed.

Cloud types:

Basically, there are three type of clouds available (Public, Private and Hybrid cloud)

Public Cloud: A Third party service providers provide the resources and services on their owned data center with structured infrastructure over the internet to the customers with security.

Private Cloud: A private cloud is data center, where the infrastructure is managed by the organization or by the third party for a customer’s organization, the infrastructure and security is maintained by the organization itself only.

Hybrid Cloud:  A Hybrid cloud is the combination of both Public and Private clouds, depends on their requirement, security, availability, and sensitivity of the data and application they decide to run on the Public or Private cloud.

Model of the Cloud Services.

We have three types of cloud services IaaS, PaaS, SaaS.

Infrastructure as a Service (IaaS): The IaaS stands for Infrastructure as a service, which provides the users with the power of storage, processing and network connectivity on demand. Using this service model the users can develop, deploy their own applications on their instances or resources.

Platform as a Service (PaaS):  The PaaS stands for Platform as a Service, where the services provided  provides the different services databases, workflows, emails, queues . as a customer we can use these services and build our own applications and the resources and backups are handled by the service provider where it helps the customers only needed to focus on their applications.

Software as a Service(SaaS):  The SasS stands for Software as a Service, where the application is provided by a third-party service provider with some admin service capabilities at the application level such as creating users, giving access to some services to users, where the customer can customize the application such as logs, colors etc.