Cloud computing allows users to access files and information from any computer connected to the internet. It stores data on remote servers rather than local hard drives. Businesses and individuals use cloud computing services every day for tasks like data backup, file sharing, social networking, online shopping, photo storage, and more. Some examples of popular cloud services are Google Docs, Facebook, eBay, and online photo albums. While convenient, cloud computing relies on internet access and has security risks if a service is hacked.

1. What is Cloud Computing?
Cloud Computing is the process in
which a server sends information to
many computers allowing people to
access files all over the world. It also
archives information which is helpful
if computers need formatting or they
catch viruses.
Cloud computing is used by
businesses and by the general public
on a daily basis.

2. Cloud Computing
Google - How does the Google search work?
• With over 17 data centers in the USA alone, there are over 36 worldwide.
• Google search software provides simultaneous calculations, taking only
half a second to search the entire web with your typed in query through
over 200 signals.
• This information is then conducted to hypertext.
• This then finds the most relevant and
reliable sources to your topic
• All this taking only seconds
Hypertext: ``Machine
readable text, so that
related information can
be connected.''

3. Cloud Computing
Google docs and Google
Dashboard
Google Docs:
• Online storage for presentations and word documents.
• Accessible from anywhere with internet connection and web browser
• No need to worry about drive failures, it is auto-save!
• Allows you to share and collaborate in real time with others who you choose to
edit your work online. Great for group projects.
• Everything is saved online!
Google Dashboard:
• Set up to give users quicker access and more control over their
personal data online.
• Lists sent mail/chat history/search history/docs/youtube etc. Allowing
you to easily manage your data with related Google products and
accounts

4. Cloud Computing
Social Networking
• Social networking focuses on the building of
people's relations and the reflecting of them.
• Networking sites are an online platform, part
of the forefront for web 2.0
• Numerous social networking sites use a
programme called Cassandra to store all data
information in large amounts along with
Backupify.
• Your information on these applications are
accessible worldwide with internet
connection.
Facebook
Twitter
Myspace
Bebo
Friendster
Orkut

5. Cloud Computing
Facebook
• Facebook has approximately 250,000 new
registers per day
• The programme relies on around 200
Memcached servers for temporarily storing
data for day to day use.
• In 2007 Facebook signed an agreement
for 10,000 square feet of storage space in
Ashburn Storage Center in Virginia.
Variety of tools and programming
used that are good for security,
speed and reliability, storing data
and memory system.
LINUX/MYSQL/PHP/MEMCACH
Facebook has over
350M users

6. Cloud Computing
File Sharing - peer-to-peer
Why?
- e-mail has size limitations on
attachments
- safe storage
files sent to online storage
files waiting in 'cloud' for
recipient to go online and
retrieve them
Business software
Personal software

7. Cloud Computing
File sharing - downloads
-Thousands of individual users
- Voluntarily install software
- Files sent in smaller pieces
Controversy!
-Copyright
-Money

8. Cloud Computing
Business Use
Already existing business can introduce an online shopping to
their customers through cloud computing!
Advantages of this are;
- Wider range of products than instore
- Internet acts as advertisement
for businesses
- Deliveries can then also be
attached to online businesses
Example - Argos:
- Every Argos product is available online
- Buy from website or reserve item at nearest store
- If you want to pick up in store, and the store nearest to you
doesn’t feature your product, they will direct you to the next
nearest store that does have your product

9. Cloud Computing
eBay
- controls more than 80% of online auction market
- already uses a grid-computing system
(inspiration behind cloud computing?)
- July 2010 - eBay becomes one of the first
customers of Microsoft's cloud platform :

10. Cloud Computing
Personal Use
Photographs/images can be kept online in a large data centre!
Advantages of this are;
- less likely to lose the image -> backed up in multiple locations
accessible through the web
- there are unlimited storage resources
- can see your image and obtain it through any internet
connection
Example - Facebook:
- Simple upload
- Organize such images
into ‘Photo Albums’
- 200 images can be
stored in one photo album

11. Disadvantages of Cloud Computing
•Reliant on Internet - nobody’s internet is perfect. When it fails,
your cloud doesn’t work.
•Hacking – the security of clouds isn’t strong, and if someone
hacks into it, you could lose everything.
•The Price – with businesses using it a lot, some smaller
businesses will not be able to afford the service which could add
stress to the employees.

12. Presentation made using: