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Table of contents
Literature of Cloud Computing !
What is Cloud
Deployment Models
Service Model
Cloud storages services
Cloud Computing in developing countries
Overall statistics of data storage in cloud server
Cloud computing in bangladesh
Oppertunities of CC in Bangladesh
Obstacles of CC in Bangadesh
Benefit of cloud computing
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Literature of Cloud Computing
Cloud Computing provides us A means by which we can access the applications and files
through Internet. It also allow us to modify the Applications and files via online.
Cloud computing is an expression used to describe a variety of computing concepts that
involve a large number of computers connected through a real-time communication network
such as the Internet. The National Institute of Standards and Technology's definition of cloud
computing identifies "five essential characteristics”
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O n - d e m a n d
s e l f- s e r v i c e
B r o a d n e t w o r k
a c c e s s
Re s o u r c e
p o o l i n g
R a p i d
e l a s t i c i t y
A c o n s u m e r c a n
u n i l a t e r a l l y
p r o v i s i o n
c o m p u t i n g
c a p a b i l i t i e s , s u c h
a s s e r v e r t i m e
a n d n e t w o r k
s t o r a g e s .
C a p a b i l i t i e s a r e
a v a i l a b l e o v e r
t h e n e t w o r k a n d
a c c e s s e d t h r o u g h
s t a n d a r d
m e c h a n i s m s
T h e p r o v i d e r ' s
c o m p u t i n g
r e s o u r c e s a r e
p o o l e d t o s e r v e
m u l t i p l e
c o n s u m e r s u s i n g
a m u l t i - t e n a n t
m o d e l , w i t h
d i f f e r e n t p h y s i c a l
a n d v i r t u a l
r e s o u r c e s
C a p a b i l i t i e s c a n
b e e l a s t i c a l l y
p r o v i s i o n e d a n d
r e l e a s e d , i n s o m e
c a s e s
a u t o m a t i c a l l y , t o
s c a l e r a p i d l y
o u t w a r d a n d
i n w a r d
c o m m e n s u r a t e
w i t h d e m a n d .
Literature of Cloud Computing(Cont) 4
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What is Cloud
The term Cloud refers to a Network or Internet. In other words, we can say
that Cloud is something, which is present at remote location. Cloud can
provide services over network, i.e., on public networks or on private
networks etc. WAN, LAN or VPN.
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Deployment Models
Deployment models define the type of access to the cloud, i.e.,
how the cloud is located? Cloud can have any of the four types
of access: Public, Private, Hybrid and Community
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The Public Cloud allo-ws
systems and service -es to be
easily accessible to the
general public. Public cloud
may be less secure because
of its openness, e.g., e-mail.
Deployment Models(Continue) 7
Public Cloud Private Cloud Hybrid Cloud Community Cloud
The Private Cloud allows
systems and services to be
accessible within an
organization. It offers
increased security because of
its private nature.
The Community Cloud allows
systems and services to be
accessible by group of
organizations.
The Hybrid Cloud is mixture
of public and private
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Service Model
Service Models are the reference models on which the Cloud Computing is
based. These can be categorized into three basic service models as listed
below:
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• Usually billed based on usage
• Can be coupled with Managed Services for OS
• EX:GRID, BLIZARD
Infrastructure as a
Service (IaaS)
• PaaS provides all of the facilities required to support the complete life cycle
• EX: Amazon Web service, Joyent
Platform as a Service
(PaaS)
•Usually billed based on usage
•Usually multi tenant environment
•Ex: Google, Facebook
Software as a Service
(SaaS)
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Cloud Computing in developing
countries
The advantages of adopting cloud can be profound for government IT
departments, starting with the reduction or redirection of on-site IT staff as
well as the ability to access IT resources and infrastructure as needed. The
importance of having a cloud computing strategy is becoming more
obvious on a daily basis. A lot of companies are moving towards this
interesting technology.
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Overall statistics of data storage in
cloud server
2011 2012 2013 2014 2015 2016
Cloud Traffic 683 1181 1694 2324 3166 3129
683
1181
1694
2324
3166 3129
0
500
1000
1500
2000
2500
3000
3500
4000
Cloud Traffic (Exabytes)
Cloud Traffic Linear (Cloud Traffic)
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Source:CiscoAnalysis,2012
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Overall statistics of data storage in
cloud server(Continue)
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Asia-Pacific
32%
Western Europe
23%
North America
37%
Middle East and Africa
2%
Latin-America
3%
Central And Eastern Europe
3%
Asia-Pacific Western Europe North America Middle East and Africa Latin-America Central And Eastern Europe
Source: Cisco Analysis,2012
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Cloud computing in bangladesh
Cloud computing adoption speed in Bangladesh is not equal to
world cloud adoption speed. Limited companies in Bangladesh
are working on cloud service provision.
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Oppertunities & Obsracles of Cloud
Computing in Bangladesh
Oppertunities Obstacles
Cost Efficiency Security
Service scalabilityy privacy
Efficiency in the use of IT Change in organizational structure
Business dimension Performance
Faster-time to market Financial
Innovation Legal
IT development in small/medium size Learning
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2
3
4
5
6Lower computer
costs
Improved
performance
Reduced software
costs
Instant
Software
Updates
Unlimited
Storage
Capacity
Increased Data
reliabilty
Benefit of Cloud Computing 15
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Disadvantages
Requires a constant Internet connection
Does not work well with low-speed connections
Features might be limited
Can be slow
Stored data can be lost
Stored data might not be secure
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