If you are looking for the information about cloud
computing, how cloud computing works, what is cloud computing or cloud
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a thorough knowledge about cloud computing in this post.
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| how cloud computing works |
What is cloud computing or How Cloud Computing Works?
Suppose if you're an IT manager in a large company. Your duty
is to make sure that all of your employees have the suitable hardware and
software they need to complete their tasks. If you buy computers for each
employee, it would be difficult as you have to purchase software license also. The
situation gets worse if your company has planned a massive hiring. You will
lose your sleep.
To overcome this situation, there is a solution called
“Cloud Computing”. If you implement cloud computing in your organization, there
will be only one application installed on the systems. Each employee need to
use the application to log on to a web based service that hosts al the programs
your employee need. Each employee will then use only his or her specific
application and work. You will have to take services of cloud computing
providers or cloud computing companies. The remote machines owned by cloud
computing providers would run everything from spreadsheets, word processing,
emails to complex data analysis software.
So we can define cloud computing as
Cloud computing means “To use multiple servers via
a digital network, as if they are a single computer. Quite often, the
services provided are thought of a part of cloud computing”
In a cloud computing scenario, there is a major workload transfer.
Local systems do not have to do all the heavy lifting when it comes to running
applications. The interconnected computers that make up the cloud handle them
instead. Software and hardware demands on the clients’ or users’ side decrease.
The only thing that a clients’ computer should be able to run is the cloud
computing system's interface software, which will be as simple as a Web
browser. The rest of the things are taken care by cloud's network
If you think that you have not used cloud computing yet,
think again as we all use cloud computing everyday. Here’s the example:
If you have an e-mail account with a Web-based e-mail
service like Gmail, Hotmail, Yahoo! Mail, then you have used cloud computing.
Instead of running an e-mail program like Microsoft Outlook or Outlook Express on
your computer, you simply logon to e-mail servers remotely. The data, software
and storage for your email account is not kept on your computer rather it
resides on the email service provider’s computer cloud.
Normally a web server runs as a single computer or
a group of privately owned computers without a cloud. The computers are capable
enough to serve a given amount of requests per minute. The computers can do so
with a certain amount of latency per request. If a website or web application suddenly
becomes popular, and the amount of requests become large than the web server
can handle, the response time of the requested pages will be increased due to
overloading. While in case of in times of low load much of the capacity will go
unused. In these cases cloud computing is the best solution to save
infrastructure, cost and time.
If a website, web application or service is hosted in a
cloud, additional processing and compute power is available from the cloud
provider. The website would share those servers with probably thousands of
other websites of varying size and memory. In case if the website suddenly
becomes popular, the cloud can automatically direct more individual computers
to work to serve pages for the site, and more money is paid for the extra
usage. If it becomes unpopular, however, the amount of money due will be less.
Cloud computing is popular for its pay-as-you-go pricing model.
List of Cloud Computing Companies or cloud computing
providers
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| Cloud computing providers |
37Signals
Adaptive Computing
Amazon
Appirio
Appistry
Apptix
AppZero
Arjuna
Astadia
Basic Gov
Bluewolf
Caspio
Citrix
Cloud.com
Cloudant
Cloudera
CloudShare
CloudSwitch
Clustercorp
CohesiveFT
Constant Contact
Cordys
Crosscheck Networks
Datapipe
Egnyte
Engine Yard
Enomaly
enStratus
Equinix
Eucalyptus
Flexiant
FreshBooks
GigaSpaces
Gladinet
GoGrid
GoodData
Google Apps
GreenQloud
GridCentric
Hosting.com
iCloud
Imonggo
Intacct
Intalio
Intuit
Jive Software
Joyent
JumpBox
Kaavo
LayeredTech
Model Metrics
Nasuni
Navajo Systems
Navisite
NetSuite
Nimbula
Nimbus
Nimsoft
Nirvanix
Nubifer
Okta
OpenNebula
PanTerra Networks
Parallels
Practice Fusion
Rackspace
Red Hat
Relational Networks
ReliaCloud
Rightscale
rPath
Salesforce.com
Savvis
SoftLayer
SuccessFactors
Sungard
Symplified
Terremark Worldwide
Tropo
Twilio
Vertica
Virtual Ark
VMWare
Voxeo
Whamcloud
Workbooks
Workday
Zoho
Zuora
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