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used laptop computerGreen computingGreen computing is the study and practice of using computing resources efficiently. Typically, technological systems or computing products that incorporate green computing principles take into account the so-called triple bottom line of economic viability, social responsibility, and environmental impact. This differs somewhat from traditional or standard business practices that focus mainly on the economic viability of a computing solution. These focuses are similar to those of green chemistry; reduction of the use of hazardous materials such as lead at the manufacturing stage, maximized energy efficiency during the product's term of use, and recyclability or biodegradability of both a defunct product and of any factory waste. A typical green computing solution attempts to address some or all of these factors by implementing environmentally friendly products in an efficient system. For example, an IT manager might purchase Electronic Products Environmental Assessment Tool (EPEAT)-approved hardware combined with a thin client solution. As compared to a traditional desktop PC configuration, such a configuration would probably reduce IT maintenance-related activities, extend the useful life of the hardware, and allow for responsible recycling of the equipment past its useful life. Green computing An open industry standard called Advanced Configuration and Power Interface (ACPI) provides a standard programming interface that allows an operating system to directly control the power saving aspects of the hardware. This allows the system to automatically turn off components such as monitors and hard drives after set periods of inactivity. In addition, a system may hibernate, in which it turns off nearly all components, including the CPU and the system RAM, greatly reducing the system's electricity usage. To resume from this state, some components, such as the keyboard, network interface card, and USB ports may remain powered, to receive input from the user. ACPI itself is a successor to an earlier Intel-Microsoft standard called Advanced Power Management, which allows a computer's BIOS to control power management functions. In the absence of ACPI or APM support, some external components, such as computer displays, printers, scanners, speakers, and hard drives may be turned off manually when not in use. In this state, though the external periphals may be off, the main system continues to consume electricity. To minimize the impact, the system could run file sharing software or volunteer computing software, donating its resources to a long-term project. Some software programs allow the user to manually adjust the voltages supplied to the CPU, essentially reducing the amount of electricity used by the CPU while it's on and powered. Since many CPUs have "safety-nets" on either side of the spectrum (+/- the voltage parameters of a given CPU), one is able to reduce the amount of volts the processor uses, hence reducing both the amount of heat produced and the amount of electricity consumed. Some CPUs from Intel Corporation and AMD, particularly those intended for use in laptops, have technology to automatically adjust the processor voltages depending on the workload. This technology is called "SpeedStep" with intel processors, "PowerNow!"/"Cool'n'Quiet" with AMD chips, LongHaul with VIA CPUs, and LongRun with Transmeta processors. In 2007, Intel Corporation released a utility called PowerTOP, which measures and reports on a PC's power consumption. This utility is available only for PCs running a Linux operating system. Newer hardware A low power Alix.1C Mini-ITX embedded board with AMD Geode LX 800 together with Compact Flash, miniPCI and PCI slots, 44-pin IDE interface and 256MB RAMAs of 2007, at least four personal computer vendors (Everex, Linutop, Systemax, and Zonbu) ship dedicated low-power thin client PCs. These systems are designed primarily for the purpose of reducing power consumption, by providing minimal hardware peripherals and low-voltage components. These design decisions limit the computational performance of such machines, which makes them impractical for applications that require a lot of processing power, such as computer gaming and video production. Dedicated low-power PCs generally are physically much smaller than traditional desktop PCs, and as such can be mounted under desks or on walls, creating more usable desk space. The Geode processor from AMD (originally from National Semiconductor), is one example of a CPU that strives for minimal power consumption while maintaining full compatibility with the x86 instruction set. Wiki Green computing |
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| computer recycle computer recycle computers Computer liquidation is a sustainable solution and is environmentally friendly. The best liquidating companies have clearly outlined policies regarding the disposal of dangerous substances which are often an issue with information technology. For anyone concerned about environmental protection, the fact that there are companies out there doing business with a view to saving the planet from at least some pollution is comforting. Such services also provide original purchasers the peace-of-mind of knowing that their discarded equipment will be disposed of properly and legally. Without sanction, the liquidators may, inter alias, sell company property, claim against insolvent contributories, raise money on the security of company assets, and so all such things as may be necessary for the winding-up and distribution of assets used computers Kate Beckinsale computer recycling nationwide computer recycling nationwide laptop computers Computer monitors may contain toxic phosphors within the glass envelope. The glass envelopes of modern CRTs may be made from heavily leaded glass, which represent an environmental hazard. Indirectly heated vacuum tubes (including CRTs) use barium compounds and other reactive materials in the construction of the cathode and getter assemblies; normally this material will be converted into oxides upon exposure to the air, but care should be taken to avoid contact with the inside of all broken tubes. Without sanction, the liquidator may, inter alias, sell company property, claim against insolvent contributories, raise money on the security of company assets, and so all such things as may be necessary for the winding-up and distribution of assets used notebooks Kate Moss high tech recycle high tech recycle computer notebooks Computer recycling refers to any process by which a computer and other electronic devices are disposed of in a safe manner that prevents it from going to waste or becoming an environmental health hazard. This can include finding another use for the system or having the system dismantled in a manner that allows for the safe extraction of the constituent materials for reuse in other products. Voluntary liquidation begins when the company passes the resolution, and the company will generally cease to carry on business at that time (if it has not done so already) computer sale Katherine Heigl hi tech recycle hi tech recycle recycling Computers and laptops that are refurbished usually means that it did not initially pass quality standards of the manufacturer. They then fix or recertify the unit and sell it at a discount price (Up to 30% off). Most of them carry a 30 day store warranty and 90 days with manufacturer. Within the computer, either as an integral part or a plugged-in interface, there is circuitry to convert internal data to a format compatible with a computer monitor used laptop Katie Holmes recycling computer recycling computer recycle |