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TOPIC 3 - Coggle Diagram
TOPIC 3
Green Computing
- the use of computers and related resources in an environmentally responsible manner
Why ?
it is helping to minimize the energy used in computing by educating consumers on efficient ways to keep power usage low, by creating more economic electronics, and by encouraging safe and complete recycling.
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Roads to Green Computing
Green use
- reducing the energy consumption of computers and other information systems as well as using them in an environmentally sound manner
Green disposal
- refurbishing and reusing old computers and properly recycling unwanted computers and other electronic equipment
Green design
- designing energy-efficient and environmentally sound components, computers, servers, cooling equipment, and data centers
Green manufacturing
- manufacturing electronic components, computers, and other associated subsystems with minimal impact on the environment
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Cloud Computing
- the use of hardware and software to deliver a service over a network
- users can access files and use applications from any device that can access the Internet
Basic concept
IaaS (Infrastructure as a Service)
- A computer infrastructure, typically presented in the form of virtualization
- Is a service within the concept of cloud hosting.
PaaS (Platform as a Service)
- An integrated platform for the development, deployment, testing and support of web-applications.
SaaS (Software as a service)
- Is the business model of software license, which involves the development and support of the software vendor
- Customers also have the opportunity of paid use of it
DaaS (Desktop as a Service)
- A slightly improved model of SaaS, mostly involving the use of multiple services at the same time necessary to complete the work
Virtualization
when one physical machine hosts multiple activities that are normally done on multiple physical machines
Server-side virtualization
- Provides a virtual desktop for users on multiple client machines
- Most processing is done on the server
- Provides a virtual desktop infrastructure (VDI)
Advantages
- Better use of resources
- Less space required
- Less energy consumed
- Reduced cost
- Faster server provisioning
- Maximize server uptime
- Improved disaster recovery
- Support for legacy systems
Disadvantages
- Requires high-end servers and more network bandwidth
- User experience may be diminished
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