Cloud Computing

Ale ervenka and Pavel merk

What is it?

computing without any special hardware or software

software as well as hardware are somewhere in the Internet

on the client side, all you need is any device with decent Internet connection, i.e. PC, laptop, mobile phone, ...

according to some people it is only a buzzword that repackages grid- and utility-computing

Why the CLOUD?

the cloud is a metaphor for the Internet

it is derived from its common depiction in network diagrams as a cloud outline.

What makes up a cloud?

a pool of highly scalable, abstracted infrastructure, capable of hosting customer applications

dynamic allocation, scaling, movement of applications

Characteristics

you pay for use

it is completely OS independent

you need not to own and maintain your own server infrastructure or other special hardware

you need not even to install any software you use your web browser to access services

Advantages

saves cost, economy of scale

highly scalable

speeds innovation

easy to deploy new services for a global market

Disadvantages

you are not in full control of your data

you must be online to use it

you depend on your provider

selling globally means obeying a host of local and international regulations

data privacy, censorship, human rights

Security

you trust your bank that your money is safe

you trust your ISP that they do not spy on you

you might also trust your CC services provider that your data is safe and they do not spy on you

Top Providers I.

HaaS: Hardware as a Service

Amazon: Elastic Compute Cloud (Amazon EC2)

Google: App Engine

Akamai

IBM

Top Providers II.

SaaS: Software as a Service

Google: Gmail, Docs

Yahoo!: Flickr

Zoho

Salesforce

Clarizen

References I.

http://en.wikipedia.org/wiki/Cloud_computing

http://searchenterprisedesktop.techtarget.com/sDefinition/0,,sid192_gci1287881,00.html#

http://news.bbc.co.uk/2/hi/technology/7693993.stm

http://news.bbc.co.uk/2/hi/technology/7695624.stm

http://www.youtube.com/watch?v=6PNuQHUiV3Q

http://www.youtube.com/watch?v=hplXnFUlPmg&feature=related

http://www.youtube.com/watch?v=7BAXvFdMBWw&feature=related

http://www.slideshare.net/guestc2f801/cloud-computing-in-the-enterprise

References II.

http://code.google.com/appengine/

http://aws.amazon.com/

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