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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 Computing◦ a collection/group of integrated and networked
hardware, software and Internet infrastructure (called a platform).
◦ Using the Internet for communication and transport provides hardware, software and networking services to clients
The storing of data and applications on remote servers, and accessing them via the Internet rather then saving or installing them on your personal or office computer
Cloud Computing
The term cloud is used because the data and application are stored on a cloud or collection of web servers and computers owned by a third party somewhere else
“Cloud”
The cloud can be accessed by the internet, cloud computing system interface software or unique interface software
This is simple as using web base service which shows all the applications and files you would need in a job or for personal use.
Inexpensive Efficient Flexible
Alternative to purchasing, running and maintaining in how computing equipment
and software
Cloud computing is:
The cloud gives you the ability to work anywhere anytime.
Ex. Online email account (gmail, yahoomail and many more)
Private cloud- Functions only for one organization on a
private network and is highly secure Public cloud
- owned by cloud service provider-owned the highest level of efficiency in
shared resources Hybrid cloud
- combination of private and public cloud deployment models
-specific resources are run or used in a public cloud and others are run in the private cloud
-this provides increase efficiency
Deployment models of cloud computing
Infrastructure-as-a-Service (IaaS) – organizations get infrastructure components such as computing power and storage capacity
Platform-as-a-Service (PaaS) – Provides organizations with the platform or a runtime environment to create and deploy applications
- the organization is only responsible for the development, maintenance
Service Models of cloud computing
Software-as-a-Service (SaaS) – provides organizations with ready to use application
- they use a combinations of cloud base compute and storage services
Represents the computer that the client see This side requires to access the cloud
computing system Gaining access can be simple by internet
browser or more complex a unique interface server which will access the cloud
Front End
Comprise of data storage system, computers and servers.
This is where your files and information will be stored
There is a central server that administers the system monitoring traffic inclined demand to insure everything runs smoothly.
The central server follows rules called Protocols.
The server also uses software called middleware which lets the networked computers communicate with each other.
Back End
Reduce IT cost Increases
processing power
Allows you to access your files anywhere
Uses a moderately priced device
PROS
Security Privacy Usage fees Bandwidth caps
CONS