Wednesday, 25 February 2015

Types of Cloud


Based on deployment model

The deployment model tells you where the cloud is located and for what purpose. On the basis of deployment model following are the types of cloud:
  • Public 
  • Private
  • Community 
  • Hybrid

Based on Service Model

Service model describe the type of service that the service provider is offering. The best-known service models are:
  • Software as a Service
  • Platform as a Service
  • Infrastructure as a Service
This is also known as SPI model


What is Cloud Computing?


Cloud Computing refers to applications and services that run on distributed network using visualized resources and accessed by common Internet protocols and networking standards. In cloud computing, resources are virtual and limitless and details of the physical systems on which software runs are abstracted(hidden) from the user.


Friday, 20 February 2015

Artificial Intelligence PPT 4

Artificial Intelligence PPT 3

Artificial Intelligence PPT 2

Artificial Intelligence PPT 1

STQA Assignment 1 (Solved)

Theory Of Computation Assignment 1 (Solved)

Artificial Intelligence Assignment-1 Solved

Cloud Computing Assignment 1 (Solved)

Cloud Computing PPT 3

Cloud Computing PPT 2

Arificial Intelligence Notes- Set 6

Sunday, 8 February 2015

Theory of Computation Ebook by KLP Mishra & N Chandrasekaran (3rd Edition)

Types of services are provided by the cloud


Click here to download it as PDF

With regard to services, at the present time, the concept of cloud computing involves the provision of the following types of services to its users:

Everything as a Service : This type of service is provided to all users of the software and hardware to control the business processes, including the interaction between users, the user only needs to have access to the Internet.
In my opinion, this kind of service is a general concept with respect to the services. Below mentioned are some of the more special cases.

Infrastructure as a Service : The computing infrastructure is given to the user, typically virtual platforms (PCs) connected to the network. It adjusts itself to suit your purpose.

Platform as a Service : The computing platform is given to the user, with the operating system and required software.

Software as a Service : This type of service is usually positioned as “software on demand“, this software is deployed on remote servers and the user can access it via the Internet, and all updates and licenses for this software is governed by the service provider. Payment in this case is made for actual use of the software.

Hardware as a Service : In this case, the user of the service leases the hardware for his own purposes. This option allows you to save on maintenance of the equipment, but in essence little different from “Infrastructure as a Service” except that you have the bare hardware on which you can deploy your own infrastructure using the most appropriate software.

Workplace as a Service : In this case, the company is using cloud computing for the organization of employment of its employees by setting up and installing the necessary software required to operate personnel.

Data as a Service : The main idea of this type of service lies in the fact that the user is provided with storage space, which may be used to store large amounts of information.

Security as a Service : This type of service enables users to quickly deploy, allowing products to ensure the safe use of Web technologies security of electronic communications, as well as the safety of the local system, which allows users of the service to save on deploying and maintaining their own security system.

Various cloud deployment models.


Click here to download it as PDF


Cloud services can be deployed in different ways, depending on the organizational structure and the provisioning location. Four deployment models are usually distinguished, namely public, private, community and hybrid cloud service usage.

Public Cloud

The deployment of a public cloud computing system is characterized on the one hand by the public availability of the cloud service offering and on the other hand by the public network that is used to communicate with the cloud service. The cloud services and cloud resources are procured from very large resource pools that are shared by all end users. These IT factories, which tend to be specifically built for running cloud computing systems, provision the resources precisely according to required quantities. By optimizing operation, support, and maintenance, the cloud provider can achieve significant economies of scale, leading to low prices for cloud resources. In addition, public cloud portfolios employ techniques for resource optimization; however, these are transparent for end users and represent a potential threat to the security of the system. If a cloud provider runs several datacenters, for instance, resources can be assigned in such a way that the load is uniformly distributed between all centers.
Three users accessing a public cloud
Figure 1: Three users accessing a public cloud

Some of the best-known examples of public cloud systems are Amazon Web Services (AWS) containing the Elastic Compute Cloud (EC2) and the Simple Storage Service (S3) which form an IaaS cloud offering and the Google App Engine with provides a PaaS to its customers. The customer relationship management (CRM) solution Salesforce.com is the best-known example in the area of SaaS cloud offerings.

Private Cloud

Private cloud computing systems emulate public cloud service offerings within an organization’s boundaries to make services accessible for one designated organization. Private cloud computing systems make use of virtualization solutions and focus on consolidating distributed IT services often within data centers belonging to the company. The chief advantage of these systems is that the enterprise retains full control over corporate data, security guidelines, and system performance. In contrast, private cloud offerings are usually not as large-scale as public cloud offerings resulting in worse economies of scale.
A user accessing a private cloud
Figure 1: A user accessing a private cloud

Community Cloud

In a community cloud, organizations with similar requirements share a cloud infrastructure. It may be understood as a generalization of a private cloud, a private cloud being an infrastructure which is only accessible by one certain organization.
Three users accessing a community cloud
Figure 3: Three users accessing a community cloud

 

 Hybrid Cloud

A hybrid cloud service deployment model implements the required processes by combining the cloud services of different cloud computing systems, e.g. private and public cloud services. The hybrid model is also suitable for enterprises in which the transition to full outsourcing has already been completed, for instance, to combine community cloud services with public cloud services.
Hybrid cloud usage
Figure 4: Hybrid cloud usage


Cloud Computing PPT 1

Artificial Intelligence Notes- Set 5



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Artificial Intelligence Notes- Set 4



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Artificial Intelligence Notes- Set 3



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