CLOUD COMPUTING AND IT TYPES

Cloud computing is on demand access , via the internet , to computing resources , applications , servers , data storage , development tools , networking capabilities , and more hosted at a remote data center managed by a cloud services provider(CSP). The term cloud refers to a network or the internet. It is a technology that uses remote servers on the internet to store, manage, and access data online rather than local drives. The data can be anything such as files, images, documents, audio, video, and more. Cloud computing enables customers to use infrastructure and applications via the internet , without installing and maintaining them on-premises . Cloud computing is the on demand availability of computer system resources , especially data storage (cloud storage) and computing power , without direct active management by the user . Large clouds often have functions distributed over multiple locations , each of which is a data center.

There are the following operations that we can do using cloud computing:

• Developing new applications and services
• Storage, back up, and recovery of data
• Hosting blogs and websites
• Delivery of software on demand
• Analysis of data
• Streaming videos and audios

. Cloud computing works on a consumption-based, pay-as-you-go model; businesses pay only for the cloud services they use and not for comprehensive services all at once.

The most common?types of cloud computing?are Dropbox—an application that enables easy file storage and data sharing, and Microsoft Azure which provides data backup and recovery services. Other popular examples of cloud computing include Google Photos, Google Drive, Gmail, Amazon Prime, and Microsoft OneDrive.

There are three popular cloud computing models that companies use:

1. Software-as-a-Service (SaaS):?This cloud-based model provides on-demand software or applications to users through the Internet.
2. Platform-as-a-Service (PaaS):?It provides IT infrastructure like hardware and software to the users for easy development, running, and management of applications.
3. Infrastructure-as-a-Service (IaaS):?It provides hardware like computer storage and networks virtually to users.

Four Types of Cloud Computing

1. Private Clouds

A private cloud is a type of cloud computing environment that provides IT infrastructure services to a particular user or organization. There is no interference from third parties in a private cloud. It can be further divided as follows:

Managed Private Clouds

Managed private clouds provide on-demand IT hardware and digital infrastructure to companies that use a private cloud model.

Dedicated Clouds

Dedicated clouds provide complete IT infrastructure for a single user in a public cloud environment. Therefore, it provides the features of a private cloud in a private cloud setup.

2. Public Clouds

While private clouds provide computing services only to a single organization, public clouds are managed by third-party vendors that offer on-demand cloud computing services to multiple organizations. Some examples of public clouds are Google, Microsoft Azure, and Amazon Web Services (AWS).

3. Hybrid Clouds

Hybrid clouds allow the integration of private and public cloud features into a single IT infrastructure. It brings together private and public cloud environments from multiple vendors and provides users with a flexible and scalable cloud environment.

4. Multi-Clouds

Multi-clouds are often confused with hybrid clouds. Multi clouds bring together multiple public clouds from different cloud service providers, whereas hybrid clouds integrate the features of public and private cloud environments.

THE SAFEST CLOUD:

All four cloud deployment models ensure data security and protection. However, the private cloud is the safest?type of cloud computing?environment as it is built in-house and no third party has access to it. Moreover, the data is managed and stored behind a firewall and controlled internally by an organization by following comprehensive data security frameworks.?