Cloud Computing Services

Hi so I just got a new homework which involves updating my blog so here we go.

What is cloud computing services?
- Cloud computing services is simply said, cloud computing is the delivery of computing services servers, storage, databases, networking, software, analytics, intelligence and more over the Internet (“the cloud”) to offer faster innovation, flexible resources and economies of scale. You typically pay only for cloud services you use, helping lower your operating costs.

Cloud Computing ideas :
-Separate IT infrastructure from main system, managed separately by one party, accesible anywhere via internet and may be shared.
-Decrease the risk of having third party application for a particular business, so the company can be more focused towards their business.
-Efficiency of infrastructure in almost every way possible.

What are its advantages and disadvantages?
       Advantages :
       - Lower compute resources cost
       - Flexible performance improvement
       - Reduce software / hardware cost
       - Managable infrastructure update
       - Relieve storage capacity limitation
       - Increase data reliability
       - Universal data access
       - Easier group collaboration
       - Device independence

      Disadvantages :
       - Requires a constant internet connection
       - Features might be limited
       - Performance/speed concerns
       - Lost of Data and System errors
       - Data Security concern
       - Doesn't work with low speed internet connections

There are 3 services given by the cloud computing service which is :
- Infrastructure as a service (IaaS) :
Lowest level of cloud based computing service, an IaaS will deliver pre-installed and configured hardware/software through a virtualized interface, examples of IaaS is web hosting company such as : GOOGLE, IBM, Amazon, etc.

 - Platform as a service (PaaS) :
Similar to IaaS but PaaS provider offers a computing platform and solution stack as a service, which means that it may come with a graphic user interface, run-time system library, programming language or an OS(operating system), PaaS services are mostly used by companies that need to develop a particular application, examples of PaaS provider is Google App Engine, Microsoft Azure, etc

- Software as a service (SaaS)
When talking about cloud services, most people think of SaaS providers, because they provide fully functionally web based applications on demand to customers. The application are mainly targeted at business users and can include web conferencing, email, time management, etc. Examples of SaaS providers are Citrix, Netsuite, etc.


Deployment Examples:
- Social networking : Facebook, Instagram, Linkedin, etc
- Data Sharing :Email, Dropbox, Google Drive, etc
- Education : Quipper, Smart Campus, E-learning, E-library,etc
- Business / Office application : Online shop portal, Google doc, Personal/Corporate website, etc
- HPC for limited duration : Efficiency for massive computing workload, etc