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CLOUD COMPUTING
#31
CLOUD COMPUTING



.pdf   CLOUD COMPUTING.pdf (Size: 433 KB / Downloads: 32)

Is It Really All That New?

If some of this sounds familiar,
it’s because, apart from the
scale, it is an almost perfect
description of the application
service provider (ASP) model
that was in vogue briefly eight
or nine years ago. ASPs, you’ll
recall, were supposed to manage
data centers and use their
expertise to run and maintain
all sorts of applications for customers, who accessed these
applications down the wire. New applications were written
or existing applications were “ASP-enabled,” and these were
either shared by multiple customers or hosted on a separate
server for each customer.


A New View From the Cloud

What’s different today is that although most of the players in
the ASP market were startups, the companies getting involved
in cloud computing are all very big. They have the resources
to build enormous data centers with the vast amounts of storage
and computing capacity required to service millions of
customers reliably. Cost of entry is high, but it will be worth
it to the likes of Google if companies can get their hands on
a sizeable proportion of the money enterprises are currently
spending on mass market applications like Office.
But they will find customers only if they can demonstrate real
benefits from taking applications from the cloud.


Worries at the Top

CIOs are not the only C-level executives worrying over the
cloud issue. “The key findings of our study showed that despite
a mandate to reduce costs, most businesses are not
adopting cloud computing even though they recognize it as
a viable option to reduce up-front and ongoing costs,” said
Larry Beck, senior director of Cloud Strategy at Avanade.
“Fear over security and loss of control of data and systems is
hindering adoption.”
There is another matter proving troublesome: regulatory
issues.


What’s in a Name?

In practice, enterprises are facing an onslaught of cloud products.
While some vendors are fudging, even outright misrepresenting,
most are not. Confusion reigns for now. “The
terminology and ontology for cloud computing is still evolving,”
said Michael Salsburg, spokesperson for the worldwide
non-profit organization, Computer Measurement Group, and
chief architect of Real-Time Infrastructures at Unisys.


Parting the Clouds
Lemkin said the number of SaaS services has mushroomed
in sync with the Web’s growth as the preferred channel to
do business. However, he warns that many SaaS services
are not truly cloud services. “While we are seeing the introduction
of strong SaaS offerings in CRM, finance, contract
management and e-signatures, what we are not seeing is the
integration of these services on the Web,” he said. “Instead
of being completely siloed, the cloud enables services to be
completely, 100 percent integrated on the Web, with no install,
no IT, and no headaches.”
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#32
CLOUD COMPUTING



.pdf   CLOUD COMPUTING.pdf (Size: 462.9 KB / Downloads: 114)

INTRODUCTION

Cloud computing is the next natural step in the evolution of on-demand information technology services and products. To a large extent cloud computing will be based on virtualized resources. The idea of cloud computing is based on a very fundamental principal of `reusability of IT capabilities`. The difference that cloud computing brings compared to traditional concepts of ―grid computing‖, ―distributed computing‖, ―utility computing‖, or ―autonomic computing‖ is to broaden horizons across organizational boundaries.


Concepts

A powerful underlying and enabling concept is computing through service-oriented architectures (SOA) - delivery of an integrated and orchestrated suite of functions to an end-user through composition of both loosely and tightly coupled functions, or services - often network based. Related concepts are component-based system engineering, orchestration of different services through workflows, and virtualization.

Cyber infrastructure

Cyber infrastructure makes applications dramatically easier to develop and deploy, thus expanding the feasible scope of applications possible within budget and organizational constraints, and shifting the scientist’s and engineer’s effort away from information technology development and concentrating it on scientific and engineering research. Cyber infrastructure also increases efficiency, quality, and reliability by capturing commonalities among application needs, and facilitates the efficient sharing of equipment and services.
Today, almost any business or major activity uses, or relies in some form, on IT and IT services. These services need to be enabling and appliance-like, and there must be an economy of- scale for the total-cost-of-ownership to be better than it would be without cyber infrastructure. Technology needs to improve end-user productivity and reduce Technology-driven overhead

Service-Oriented Architecture

SOA is not a new concept, although it again has been receiving considerable attention in recent years [e.g., Bel08, IBM08a]. Examples of some of the first network-based service-oriented architectures are remote procedure calls (RPC), DCOM and Object Request Brokers (ORBs) based on the CORBA specifications . A more recent example are so called ―Grid Computing‖ architectures and solutions . In an SOA environment end-users request an IT service (or an integrated collection of such services) at the desired functional, quality and capacity level, and receive the reponse at the time requested or at a specified later time. Service discovery, brokering, and reliability are important .Goal of the SOA is that creating an architecture in which servises are able to communicate using http protocol It is expected that in the next 10 years, service-based solutions will be a major vehicle for delivery of information and other IT assisted functions at both individual and organizational levels.


Cloud Architecture

Cloud architecture the systems architecture of the software systems involved
in the delivery of cloud computing, comprises hardware and software designed by a cloud architect who typically works for a cloud integrator. It typically involves multiple cloud components communicating with each other over application programming interfaces, usually web services.
This closely resembles the Unix philosophy of having multiple programs doing one thing well and working together over universal interfaces. Complexity is controlled and the resulting systems are more manageable than their monolithic counterparts.
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#33
CLOUD COMPUTING



.pptx   Cloud Computing for Sanfoundry.pptx (Size: 2 MB / Downloads: 137)

What is Cloud



NIST definition:
Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction


How Cloud Works


Applications are provided and managed by the cloud server and data is also stored remotely in the cloud configuration
Users do not download and install applications on their own device or computer

Cloud users access the cloud server resources (apps) using a computer, laptop, netbook, smart phone, or other device

Cloud - Client Server Model
User “Log In” to the cloud through web-based protocols
Browers (Chrome, IE, Firefox)
Thin Client Supplied by Cloud Service Provider


Benefits of a Cloud


Can be accessible over any type of Client
Windows, Linux, Mac, Android
Desktop, Laptop, Smart phones, Mobile

Very helpful to telecommuters and mobile workers

Saves lots of cost over traditional IT


Traditional IT


Hardware (Server, Storage, Network)
Procurement of Different Hardware
Real Estate (physical space)
Power Supply, Cooling
Administration (manpower)
The more the hardware and types of hardware, the more the manpower
End-of-life Upgrades (3-5 years cycle)
Ongoing Maintenance cycles


Cloud Service Models

Mainly three kinds services may be delivered by
a cloud service vendor.
SaaS (Software as a Service)
SaaS is where computer apps are accessed over the Internet.
PaaS (Platform as a Service)
A online platform is a software environment used to develop and run applications.
IaaS (Infrastructure as a Service)
Online infrastructure to store data and develop apps.











Cloud computing



.pptx   cloud computing.pptx (Size: 2.04 MB / Downloads: 25)

Definition


Cloud computing is the delivery of computing as a service rather than a product, whereby shared resources, software, and information are provided to computers and other devices as a utility


Introduction

Internet based voice and data communications
Cloud services
VOIP
Cloud communication
environment
Trends – 3
WAN
Iphone
Data centers


Applications


Mobile users
Science
Medical use
Security
Real time
Internet


Conclusion


overcome skepticism and resistance due to security and control issues associated with cloud computing report business benefits and accelerating use of cloud-based technologies



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#34
CLOUD COMPUTING


.doc   PAPER PRESENTATION-CLOUD COMPUTING.doc (Size: 258.5 KB / Downloads: 28)

ABSTRACT

Cloud computing is basically an Internet-based network made up of large numbers of
servers - mostly based on open standards, modular and inexpensive. Clouds contain
vast amounts of information and provide a variety of services to large numbers of
people. The benefits of cloud computing are Reduced Data Leakage, Decrease evidence
acquisition time, they eliminate or reduce service downtime, they Forensic readiness, they
Decrease evidence transfer time The main factor to be discussed is security of cloud
computing, which is a risk factor involved in major computing fields



CLOUDCOMPUTING

What is a Cloud computing?



Cloud computing is Internet- ("CLOUD-") based development and use of computer
technology ("COMPUTING")
Cloud computing is a general term for anything that involves delivering hosted services over the Internet.
It is used to describe both a platform and type of application.
Cloud computing also describes applications that are extended to be accessible through the
Internet.
These cloud applications use large data centers and powerful servers that host Web
applications and Web services.
Anyone with a suitable Internet connection and a standard browser can access a cloud
application.


User of the cloud only care about the service or information they are accessing - be it from their
PCs, mobile devices, or anything else connected to the Internet - not about the underlying details
of how the cloud works.”
History
The Cloud is a metaphor for the Internet, derived from its common depiction in network diagrams
(or more generally components which are managed by others) as a cloud outline.
The underlying concept dates back to 1960 when John McCarthy opined that "computation may
someday be organized as a public utility" (indeed it shares characteristics with service bureaus
which date back to the 1960s) and the term The Cloud was already in commercial use around
the turn of the 21st century. Cloud computing solutions had started to appear on the market,
though most of the focus at this time was on Software as a service.
2007 saw increased activity, including Goggle, IBM and a number of universities embarking on
a large scale cloud computing research project, around the time the term started gaining popularity
in the mainstream press. It was a hot topic by mid-2008 and numerous cloud computing events
had been scheduled.
WHAT IS DRIVING CLOUD COMPUTING?
The CLOUD COMPUTING is driving in two types of categories .They are as follows:
Customer perspective
Vendor perspective
Customer perspective:


In one word: economics
Faster, simpler, cheaper to use cloud computation.
No upfront capital required for servers and storage.
No ongoing for operational expenses for running datacenter.
Application can be run from anywhere.

Vendor perspective:

Easier for application vendors to reach new customers.
Lowest cost way of delivering and supporting applications.
Ability to use commodity server and storage hardware.
Ability to drive down data center operational cots.
Types of services:

These services are broadly divided into three categories:
Infrastructure-as-a-Service (IaaS)
Platform-as-a-Service (PaaS)
Software-as-a-Service (SaaS).
Infrastructure-as-a-Service (IaaS):
Infrastructure-as-a-Service(IaaS) like Amazon Web Services provides virtual servers with unique
IP addresses and blocks of storage on demand. Customers benefit from an API from which they
can control their servers. Because customers can pay for exactly the amount of service they use,
like for electricity or water, this service is also called utility computing.

Platform-as-a-Service (PaaS):

Platform-as-a-Service(PaaS) is a set of software and development tools hosted on the provider's
servers. Developers can create applications using the provider's APIs. Google Apps is one of the
most famous Platform-as-a-Service providers. Developers should take notice that there aren't any
interoperability standards (yet), so some providers may not allow you to take your application and
put it on another platform.
Software-as-a-Service (SaaS):
Software-as-a-Service (SaaS) is the broadest market. In this case the provider allows the
customer only to use its applications. The software interacts with the user through a user
interface. These applications can be anything from web based email, to applications like
Twitter or Last.fm.

Types by visibility:
Public cloud:


Public cloud or external cloud describes cloud computing in the traditional mainstream sense,
whereby resources are dynamically provisioned on a fine-grained, self-service basis over the
Internet, via web applications/web services, from an off-site third-party provider who
shares resources and bills on a fine-grained utility computing basis.

Hybrid cloud:

A hybrid cloud environment consisting of multiple internal and/or external providers] "will be
typical for most enterprises". A hybrid cloud can describe configuration combining a local device,
such as a Plug computer with cloud services. It can also describe configurations combining virtual
and physical, colocated assets—for example, a mostly virtualized environment that requires
physical servers, routers, or other hardware such as a network appliance acting as a firewall or
spam filter.
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#35
CLOUD COMPUTING



.pptx   CLOUD COMPUTING.pptx (Size: 1.29 MB / Downloads: 30)

DEFINING CLOUD COMPUTING

“Cloud computing is an emerging approach to shared infrastructure in which large pools of systems are linked together to provide IT services.”
“…a hosted infrastructure model that delivers abstracted IT resources over the Internet”

“Cloud computing describes a systems architecture. Period. This particular architecture assumes nothing about the physical location, internal composition or ownership of its component parts.”


IaaS(Infrastructure As a Service)


CLOUD providers offer computers –as physical or more often as virtual machines.
Firewalls,Raw storage,load balancers & Networks.
For wide area connectivity internet can be used.
Cloud users responsible for patching & maintaining the OS & Application software.
Billing is done on a utility computing basis….


SaaS(Software As a Service)


Cloud providers install & operate application software in the cloud.
Cloud users access the software from Cloud Client.
Cloud users don’t manage the Cloud infrastructure & platform.
It has the property of elasticity.
Cloning task onto multiple virtual machine at runtime.
The process is transparent to the cloud users(Single Access Point)..


Cloud “Applications”

SaaS resides here
Most common Cloud / Many providers of different services
Examples: Sales Force, Gmail, Yahoo! Mail, Quicken Online
Advantages: Free, Easy, Consumer Adoption
Disadvantages: Limited functionality, no control or access to underlying technology





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#36
CLOUD COMPUTING



.pptx   CLOUD COMPUTING,E BIZ.pptx (Size: 588.78 KB / Downloads: 33)

What is cloud computing?...


Way of using business applications over the internet.
Hardware and software demands on the user's side decrease
The application would allow employees of an organization to log into a Web-based service which hosts all the programs the user would need for his or her job.


Benefits of moving to cloud


Capital intensive hardware & infrastructure
Less time consuming
Staff-intensive upgrades
Access data at anytime
It could bring hardware costs down
Storage space can be minimized.


Amazon cloud


The Amazon Cloud Player lets you lease disk space from Amazon's cloud to store your music and other files and to access them from anywhere.

The first 5 GB of storage is free, and mobile devices with the Amazon MP3 Player can stream music online so you can listen to it straight from the Internet instead of downloading it to your device.

With the Cloud Drive, you can upload files to the cloud and organize them via a user-friendly interface


E-Commerce


Electronic commerce (EC) is an emerging concept that describes the buying and selling of products, services and information via computer networks, including the Internet.



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#37
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