Cloud computing

is defined as the art of storing, retrieving and gaining access to data and programs on remote servers that are hosted on the internet instead of computer’s hardware to offer faster innovation and save resources.

Types of cloud computing;

Iaas (infrastructure as a service); this is a type of cloud computing which provides access to networking services such as network, operating systems, data storage services, and virtual servers.

Features

• It provides and manage virtualized framework for businesses.
• Provides you with the highest flexibility and control over your IT resources.
• Users gets access to resources and services through a wide area network e.g., internet and uses cloud provider services to install the remaining features of an application.

Benefits of Iaas

• Assured accessibility; there is availability even in the face of server failure or shutdown of a data center. This achieved by spreading out resources across multiple servers placed in diverse locations.
• It provides wide distribution of services.
• Reduced infrastructure costs.
• Accessibility; Iaas allows users to access resource functionality from any location in the world.
• Easier and more cost effective.

Disadvantages of Iaas

• Users does not have control over infrastructure.
• Technical problems over update and maintenance are never ending.
• Lack of flexibility.

2. SaaS (Software as a service); a distribution of system software where a third party provides app to client over the internet. It’s a process of delivering implementing software applications over the internet, on a subscription basis particular. Cloud providers can host and manage the software application and underlying structure, and handle any service like software upgrade. Users connect to the application over the internet, through a web browser on their phone, personal computer etc.

Benefits of Saas

• It provides opportunity for free trials.
• Improves cash flow
• Provide conveniences
• Constant Maintenance and update are available.
• Easy to implement.
• Easier app integration

Disadvantages of Saas

• Software integration problems.
• Insecurity
• Instability

3. Paas (platform as a service); provide all the hardware and software resources needed for developing, testing and managing cloud applications. It is designed to make it easier for developers to quickly create websites or mobile apps, without worrying about setting up and managing the underlying structure of servers, network, databases and storage needed for development.

Benefits of Paas

• Access to a wider variety of resources.
• Lower costs of resources.
•  it provides a shared software development environment that allows development and operation teams gain access to all the tools they need, from any location with an internet connection.
• Freedoms of experiment with less risk.

Disadvantages of Paas

• Less security control.
• Can’t be relied on.

We have three different classifications of Cloud Computing deployment models available. You just have to choose the one that serves your best purpose;

• Private clouds; can be seen as a cloud computing resources that are owned by private business, they are built, managed and operated by a single organization and privately hosted in their own data center popularly known as on-site service. It limits access to the inner team which results in a more controlled, and secured environment for cloud resources, suitable for larger businesses that seeks data security and privacy. Examples are amazon web services, virtual machines software (VMware).
• Public cloud; these are owned and operated by a third party-cloud service providers, they offer computing resources like network, storage and servers, over the internet. You can access these services based on shared-on-demand resources through your account using a web browser. Examples are Google, Amazon, Microsoft Azure Sun cloud.
• Hybrid cloud; these service combines both private and public clouds, to share data and apps. it gives your business greater flexibility, greater capability options, and helps to optimize your existing structure, security and accession.