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AMOS KUJENGA ADLSN Training Coordinator [email protected] Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

AMOS KUJENGA ADLSN Training Coordinator [email protected] Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

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Page 1: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

AMOS KUJENGAADLSN Training [email protected] Ababa, Ethiopia5 – 7 November 2014

Cloud Computing

Page 2: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

Outline of Presentation

Definition Types of Cloud Services Examples Facts Pros and Cons

Page 3: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1. 1 Cloud Computing Defined

“Cloud” is a metaphor for the Internet. “Cloud Computing” is a modern phrase commonly used

today to refer to the act of storing, accessing, sharing data,

applications, and computing power over the Internet, in other

words in cyberspace. (ANDERSON & RAINIE, 201)

Page 4: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.1 Cloud Computing Defined “Cloud Computing” is when computing is delivered as a service rather than a product

◦Computing services are made available to computers and other devices over a network such as the Internet◦On-demand access can be rapidly given with minimal service provider interaction

Page 5: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.2 Types Of Cloud Services

Software as a Service (SaaS)

Platform as a Service (PaaS)

Infrastructure as a Service (IaaS)

Page 6: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.21 Software as a Service (SaaS)A software distribution model in

which off-the shelf applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet.

Is the simplest form of cloud computing

Innovative Sierra, WorldCat

Page 7: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.22 Platform as a Service (SaaS)Cloud based platform, services,

and tools for creating and hosting SaaS applications

Allows users to create their own applications using supplier-specific tools and languages

Risk of vendor lock-inGoogle App Engine, Windows

Azure

Page 8: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.23 Infrastructure as a Service (SaaS)AKA Hardware as a Service (HaaS)Virtual computer and infrastructure

services in the cloud for hosting traditional software applications

Allows users to run any applications they please on cloud hardware of their own choice

Amazon Elastic Compute Cloud (EC2), Amazon Simple Storage Service (Amazon S3)

Page 9: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1. 3 Cloud Computing ExamplesCategory Example

Office Applications Google Docs, MS Office 365

Mailing Services Gmail, Yahoo, Zimbra

Storing Services DropBox

Software and Applications Hosted repositories

Video and Presentation Services

YouTube, SlideShare, Prezi

File Sharing Services DropBox

Calendar Services Google Calendar

Social Networking Facebook, Google+

Page 10: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1. 3 Cloud Computing ExamplesHosted Versus Non-Hosted DLs

Page 11: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1. 3 Cloud Computing ExamplesHosted Repositories

Page 12: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1. 3 Cloud Computing ExamplesHosted Repositories

Page 13: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.4 Cloud Computing FactsMobile technology is driving

people to cloud-based services, killing the PC market

The exponential increase in access to the Internet is also a major player

Social networking sites are the most popular cloud-based services

Less staff focus on IT issues, more focus on service delivery

Page 14: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.4 Cloud Computing FactsSupport by service providers as

opposed to IT staff

Page 15: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.5 Cloud Computing ProsNo upfront investment in hardware and/or

softwareAnywhere, anytime access to data and

servicesIncreased reliability (subject to debate)Ease of data sharingProvide backup to locally stored dataEase of collaborative workingServices can be provisioned in minutesScalable (add capacity as needed, no old

assets)

Page 16: AMOS KUJENGA ADLSN Training Coordinator akujenga@gmail.com Addis Ababa, Ethiopia 5 – 7 November 2014 Cloud Computing

1.6 Cloud Computing ConsSecurity concernsPrivacy concernsGreater depence on external

forces◦Loss of local control◦Vendor lock-in

Requires constant high-speed Internet access

“Forces” use of high-end devices