The need for more storage is growing. The amount of data produced is doubling in every two years. (in 2010 – 1.8 zettabytes) The cost of creating‚ managing and storing the data is decreasing‚ but can the optical storage expand further? The current Blu-ray lasers emit light in the blue part of the electromagnetic spectrum (about 420 nanometer wavelength). There are ongoing researches using UV light‚ that would probably have to be 200 nm and would provide storage capacities of over 100 GB in a single
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economically viable alternative to other storage networking solutions. Justify this statement. Ans- DAS provides an economically viable alternative to other storage networking solutions as- • DAS configuration is simple and can be deployed easily and rapidly. • Setup is managed using host-based tools‚ such as the host OS‚ which makes storage management tasks easy for small and medium enterprises. • DAS is the simplest solution when compared to other storage networking models • Requires fewer
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Secondary storage (optical) Table of contents Why was secondary storage needed? 1 Different types of optical discs: 1 1‚ CD (compact disc): 1 2‚ DVD (digital versatile storage) 2 3‚ Blu-Ray Disc (BD): 3 Which type of recordable disc should I choose: 3 Understanding the difference between the Live File System and Mastered disc formats: 3 Discs formatted with the Live File System option: 3 Discs formatted with the Mastered option: 4 Questions from students: 4 References: 5
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compute the number of drives required to support the application in different RAID environments if 10K RPM drives with a rating of 130 IOPS per drive were used. Chap 5 Exercises 1. DAS provides an economically viable alternative to other storage networking solutions. Justify this statement. 2. How is the priority sequence established in a wide SCSI environment? 3. Why is SCSI performance superior to that of IDE/ATA? Explain the reasons from an architectural perspective. 4. Research blade
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Evaluation of impacts and developments of nanotechnology During the past quarter of century nanotechnology is one of most commonly known and developing science in the world. Sobolev (2005 p. 14) asserts that nanotechnology is the next industrial revolutionary science‚ which leads physics‚ chemistry and biology scientist to control and manipulate matter at extremely small scale‚ even at the level of molecules and atoms. Sahoo (2006 p. 21) defines nanotechnology as a science of manipulation‚ characterization
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The Impact of Nanotechnology in Our Lives"Nanotechnology is science and engineering at the scale of atoms and molecules. It is the manipulation and use of materials and devices so tiny that nothing can be built any smaller." It refers to the use of materials with nanoscale dimensions‚ ranging from 1-100 nanometers. Nanotechnology impacts our lives today in many ways‚ such as economically‚ socially‚ environmentally‚ ethically‚ and more. Nanotechnology is used broadly in many ones’ daily life. Many
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Energy Harvesting and Nanotechnology | April 28 2011 | Energy harvesting generators are attractive as unlimited replacements for batteries in electronic devices and have been the focus of new researches for past years. This paper reviews the principles behind this technology and their integration to harvest energy. Also proposes a greener alternative for the production of quantum dots before the integration to new technologies. | Nanowires and Quantum Dots | Energy Harvesting with Nanowires
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Cloud storage is a model of networked online storage where data is stored on multiple virtual servers‚ generally hosted by third parties‚ rather than being hosted on dedicated servers.Hosting companies operate large data centers; and people who require their data to be hosted buy or lease storage capacity from them and use it for their storage needs. The data centeroperators‚ in the background‚ virtualize the resources according to the requirements of the customer and expose them as storage pools
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process it into useful information (output) and stored it away (in a secondary storage device) for safekeeping or later reuse. The processing input to output is directly by the software but performed by the hardware. To function‚ a computer system requires four main aspect of data handling: Input Processing Output Storage Secondary Storage Input Processing
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this kind of things. Nanotechnology is one of these inventions which are needed to be discussed from point to point. Today‚ there are some people who believe that nanotechnology is dangerous; however some scientists think that nanotechnology has great benefits because it helps people to invent new things for the future.
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