The document provides an overview of cloud computing, defining it as a network-based computing model that utilizes internet resources instead of local infrastructure. It discusses its benefits, such as reduced IT costs and increased accessibility, alongside its primary service models: Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Additionally, it highlights factors affecting cloud services, including usage fees and security concerns.

1. By:
Prateek Verma
ASU2013010100051

2.  Introduction
 What is cloud computing
 How cloud computing works
 Uses of cloud computing
 How cloud computing stores data
 Factors affecting cloud computing
 Pros and Cons of cloud computing
 Building blocks of cloud computing

3.  Cloud computing is where computing
resources are stored in a virtual online
“cloud” rather than a local desktop or
organization data center.

4. • Cloud Computing is a general term used to
describe a new class of network based
computing that takes place over the
internet.
• Basically a step on from utility components.
• Using the internet for communication and
transport provide hardware , software and
networking services to clients.

5. Link: http://computer.howstuffworks.com/cloud-
computing/cloud-computing.html

6.  It helps us to use applications without
installation
 We access the personal files and data from
any computer with internet access.
 This technology allows much more efficient
computation by centralizing storage, memory
and processing

7. Link :http://www.cloud-lounge.org/where-is-my-
data-being-stored.html

8.  https://en.wikipedia.org/wiki/Cloud_storage

9. There are two major factors that effect
cloud computing services:
 Usage fees
 Bandwidth caps

10. PROS CONS
Reduces IT costs security
Increase processing power privacy
Allows us to access our files
anywhere
Usage fees
Uses a moderately priced
device
Bandwidth caps

11. There are three building blocks of cloud
computing :-
 SAAS (Software as a service)
 PAAS (Platform as a service)
 IAAS (Infrastructure as a service)

12.  SaaS is a cloud computing layer most people
have interacted with one and are likely to
use in their day to day lives .
 Software as a service is where computing
applications are accessed through the
internet .
 SaaS eliminates the need to download ,install
and run applications on local computers.
 These applications are managed by a third
party vendor.. Example: Google docs.

13.  A one to many model is used for software
delivery.
 Software management is done from a
centralized location.
 Access to the commercial application is
gained via the internet.
 The end users need not worry about software
patches and upgrades.
 Application programming interfaces enable
integration with other applications.

14.  No fixed costs
 Device interdependecy
 collaborative-allows multiple sharing of
information
 Constant updates

15. o The main disadvantage of SaaS is that it’s,
limited to browser capabilities.
o Another drawback of SaaS is the security
concerns that surround it.

16. o PaaS is a software environment used to
develop and run applications .
o PaaS can be defined as a computing platform
that enables the creation , testing , and
implementation of software easily and
quickly without the complexities of buying
and maintaining the infrastructure and
additional software.
Examples: Google app engine , MS Azure and
force.com

17.  Has services that allow testing,
development, hosting and maintenance of
applications.
 The platform can be accessed by multiple
users.
 Development support
 Tools with handle subscription and billing
management.

18.  Cost reduction
 Streamlined application development and
management
 Increased mobility
 Reduced technical maintenence

19.  The main disadvantage of PaaS is its
restrictive nature. Despite the fact that it
makes the development of online
applications easy , developers are restricted
to the programming language and tools
provided by the PaaS Vendor.

20.  The final and most fundamental layer of
cloud computing is infrastructure as a
service, it is sometimes referred to as
hardware as a service. In this computing
infrastructure, networking and storage are
delivered over the internet. An enterprise
can purchase the services on demand.
 Example: Amazon web services
 IaaS is the most fundamental building block,
it covers the areas where PaaS and SaaS do
not; making at the ideal solution.

21.  Resources and infrastructure are distributed
as a service.
 Enables dynamic scaling
 Multiple users utilize a single piece of
hardware.