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Laptops usually run on batteries, but also from adapters which also charge the battery using mains electricity. Before laptop computers were technically feasible, similar ideas had been proposed, most notably Alan Kay's Dynabook concept, developed at Xerox PARC in the early 1970s. * Desktop computer In 2005, faculty members from the MIT Media Lab including Nicholas Negroponte introduced the $100 laptop as part of the One Laptop Per Child project. The aim is to design, manufacture, and distribute laptops that are sufficiently inexpensive to provide every child in the world access to knowledge and modern forms of education. The laptops will be sold to governments and issued to children by schools on a basis of one laptop per child. These machines will be rugged, Linux-based, and so energy efficient that hand-cranking alone will generate sufficient power for operation. Ad-hoc wireless mesh networking may be used to allow many machines Internet access from one connection. The pricing goal is to start at $100 and then steadily decrease. * NEC - VERSA, LaVie A laptop computer (also known as notebook computer) is a small mobile personal computer, usually weighing from 1 to 3 kilograms (2 to 7 pounds). Terms for subtypes of notebooks (and related computer types) include: Laptop performance has been inferior to desktops for the same price. Desktops have outperformed mobile computers because new technologies expend more heat. These new technologies take time to transfer over to the laptop market because of its smaller package. While desktops continue to outperform notebooks at the high end, both types of systems generally offer sufficient performance for the mainstream. This still existent difference in performance continues to be minimized.
* Zyrex Similarly it is often possible to wirelessly connect a laptop using a cellphone as a modem. Infra-red, USB and Bluetooth solutions are available. The same caveats regarding price of service apply. * Docking stations may be used for expanding connectors and quickly connecting many components to the laptop, although they are falling out of favour as laptops' integral capabilities increase and USB allows several peripherals to be connected through one plug. The word laptop is often spelled incorrectly as "labtop," "lab top," or "lap top." As technology improved during the 1990s, the usefulness and popularity of laptops increased while prices went down. Several developments specific to laptops were quickly implemented in their design, improving their usability and performance compared to desktop computers. Among them were: * Toshiba - Dynabook, Equium, Portege, Tecra, Satellite, Qosmio, Libretto
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* Improved interconnectivity. Internal modems and standard serial, parallel, and PS/2 ports on IBM PC-compatible laptops made it easier to work away from home; the addition of Ethernet networking ports and, from 1997, USB, and from 1999, Wi-Fi, made laptops as easy to use with peripherals as a desktop computer. * PDA Later PowerBooks introduced the first 256-color displays, first true touchpad, and first built-in Ethernet networking. * Desknote * Alienware - Area 51m, Sentia and Aurora m series Laptops are capable of many of the same tasks that desktop computers perform, although they are typically less powerful for the same price. Laptops contain components that are similar to those in their desktop counterparts and perform the same functions but are miniaturized and optimized for mobile use and efficient power consumption. Laptops usually have liquid crystal displays and use SO-DIMM (Small Outline DIMM) modules (rather than the larger DIMMs used in desktop computers) for their RAM. In addition to a built-in keyboard, they may utilize a touchpad (also known as a trackpad) or a pointing stick for input, though an external mouse or keyboard can usually be attached.
Laptops & laptop brands * Relion Performance * Sharp - Mebius In 2005, faculty members from the MIT Media Lab including Nicholas Negroponte introduced the $100 laptop as part of the One Laptop Per Child project. The aim is to design, manufacture, and distribute laptops that are sufficiently inexpensive to provide every child in the world access to knowledge and modern forms of education. The laptops will be sold to governments and issued to children by schools on a basis of one laptop per child. These machines will be rugged, Linux-based, and so energy efficient that hand-cranking alone will generate sufficient power for operation. Ad-hoc wireless mesh networking may be used to allow many machines Internet access from one connection. The pricing goal is to start at $100 and then steadily decrease. * ASUS