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Green computing
The document presents a seminar on green computing, defined as the efficient use of computer resources with minimal environmental impact through practices like reducing hazardous materials and energy consumption. It emphasizes the importance of green manufacturing, energy efficiency programs like Energy Star, and strategies for prolonging equipment lifespan, optimizing software, and promoting recycling. Additionally, it discusses methods for conserving energy during computer usage, such as using sleep or hibernate modes, and advocates for responsible disposal through reusing, refurbishing, and recycling components.
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Introduction to the seminar on Green Computing by Dipankar Mazumdar.
Green Computing focuses on efficient use of resources and minimizing environmental impact.
Highlights wasteful energy usage, pollution, and toxicity issues associated with computing.
Green Manufacturing practices including eco-friendly materials like bamboo and recyclable plastics.
PC components' energy usage, with examples of wattage consumption over a standard workweek.
Overview of the Energy Star program promoting energy-efficient computing products since 1992.
Sequential approaches to achieving Green Computing: use, disposal, design, and manufacturing.
Strategies including prolonging product life, software optimization, recycling, and power management.
Techniques like Sleep and Hibernate modes to save energy while using computers.
Description of 'Blackle,' a search engine designed to save energy with a dark interface.
Methods of reusing, refurbishing, and recycling electronic components to promote sustainability.
Concluding remarks of the seminar on Green Computing by Dipankar Mazumdar.
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Green computing
- 1. GREEN COMPUTING Seminar Presentedby- Dipankar Mazumdar
- 2. What is GREENCOMPUTING? Green Computing is the practice of using computer resources efficiently. Designing, manufacturing, disposing computers, servers with no impact on the environment. To reduce the use of hazardous materials, thus maximizing energy efficiency during product’s lifetime. Also known as Green IT.
- 3. Why GREEN COMPUTING? Computer Energy is often wasteful. Eg: Leaving the Computer ON when not in use. Printing is wasteful. Eg: Email / Meeting agenda’s print-outs is a waste. Pollution. Eg: Due to manufacturing, packaging, disposal techniques. Toxicity. Eg: Due to toxic chemicals involved in manufacturing.
- 4. Green Manufacturing- Bamboo:is becoming increasingly popular for making casings for computers & peripherals. Recyclable plastics: Computers are constructed from recyclable polycarbonate resin. Eco-friendly flame retardant: There are flame retardant silicone compounds available that are flame retardant and completely non-toxic. Inventory Management: reducing the quantity of both hazardous materials used in the process and the amount of excess raw materials. Volume reduction: removes hazardous portion of waste from non-hazardous portion.
- 5. Energy use ofPC: CPU uses 120 watts. CRT uses 150 watts. -8 hours of usage, 5 days a week = 562 KWatts. Energy use basically comes from- -Electrical current to run the CPU, Motherboard, Memory -Running the fan & spinning the disk. -Monitor.
- 6. Energy Star Oneof the first manifestations of the Green Computing movement was the launch of ‘Energy Star’ program back in 1992. Energy Star served as a voluntary label awarded to computing products that succeeded in minimizing use of energy while maximizing the efficiency. Energy Star applied to products like Monitors, television sets and temperature control devices like refrigerators, air-conditioners.
- 7. Pathways to GreenComputing: Following are the pathways to Green Computing: Green Use. Green Disposal. Green Design. Green Manufacturing.
- 8. Approaches: Product longevity:the biggest contribution to green computing usually is to prolong the equipment's lifetime. Recently, ‘Fujitsu’ released a Life Cycle Assessment (LCA) of a desktop that shows that manufacturing and end of life accounts for the majority of the laptop ecological footprint. Software and deployment optimization: - The efficiency of algorithms has an impact on the amount of computer resources required for any given computing function. - Algorithm changes, such as switching from a slow (e.g. linear) search algorithm to a fast (e.g. hashed or indexed) search algorithm can reduce resource usage for a given task from substantial to zero.
- 9. Approaches: contd.. Powermanagement. Recycling.
- 10. Saving Energy whileworking in Computer: Sleep Mode: Sleep or Stand-by mode conserves energy by cutting off power to our display, hard drives and peripherals. After a preset period of inactivity, our computer switches to a low power state. Hibernate Mode: Saves energy and protects our work by copying system data to a reserved area on our hard drive and then completely turning off computer.
- 11. Saving Energy whileworking in Internet: ‘Blackle’ is a website powered by Google custom search and created by ‘Heap Media’ which aims to save energy by displaying a black background and using grayish-white font color for search results. ‘Blackle’ saves energy because the screen is predominantly black. Setting ‘Blackle’ as the default search engine will definitely take us to Green computing.
- 12. Green Disposal: Reuse:donate your computer components to people who don’t have or have lesser quality computers. Refurbish: rather than discarding your computer upgrade it. Change its parts to make it new. Recycle: One of the major challenges is recycling the printed circuit boards from electronic wastes. The circuit board contains such precious metals as gold, silver, platinum etc.
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